\u30d1\u30b9\u30ef\u30fc\u30c9\u3068MFA\u3067\u5b88\u308b \u2015 \u8a8d\u8a3c\u5f37\u5316\u306e\u5b9f\u8df5\u30ac\u30a4\u30c9\uff5c\u793e\u4f1a\u4eba1\u5e74\u76ee\u306e\u30b5\u30a4\u30d0\u30fc\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u57fa\u672c \u7b2c3\u56de<\/title>\n<link href=\"https:\/\/fonts.googleapis.com\/css2?family=Noto+Sans+JP:wght@400;500;700;900&display=swap\" rel=\"stylesheet\"\/>\n<style>\n*, *::before, *::after { box-sizing: border-box; }\nbody {\n background-color: #f3f4f6;\n margin: 0; padding: 0;\n font-family: \"Noto Sans JP\", sans-serif;\n -webkit-font-smoothing: antialiased;\n}\n.web-container {\n background-color: #ffffff;\n max-width: 900px;\n margin: 0 auto;\n box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.05);\n min-height: 100vh;\n}\n.risk-report {\n font-family: \"Noto Sans JP\", sans-serif;\n line-height: 1.8;\n color: #333;\n padding: 20px;\n}\n.risk-report h1, .risk-report h2, .risk-report h3, .risk-report h4 {\n font-weight: 700;\n margin-top: 2.5em;\n}\n.risk-report h1 {\n font-size: 2rem;\n border-left: 6px solid #059669;\n padding-left: 12px;\n margin-bottom: 1em;\n line-height: 1.4;\n color: #1e293b;\n}\n.risk-report h2 {\n font-size: 1.6rem;\n border-left: 5px solid #10B981;\n padding-left: 10px;\n color: #1e293b;\n margin-bottom: 1em;\n}\n.risk-report h3 {\n font-size: 1.3rem;\n border-left: 4px solid #34D399;\n padding-left: 8px;\n color: #334155;\n margin-bottom: 0.8em;\n}\n.risk-report h4 {\n font-size: 1.1rem;\n color: #475569;\n margin-top: 1.5em;\n margin-bottom: 0.5em;\n}\n.risk-report p { margin-bottom: 1.5em; }\n.risk-report ul, .risk-report ol { margin-left: 1.2em; padding-left: 0; }\n.risk-report li { margin-bottom: 0.4em; }\n.risk-report ul li { list-style-type: disc; }\n.risk-report strong { color: #065F46; font-weight: 700; }\n\n.alert-box {\n background: #FEF2F2; border-left: 5px solid #DC2626;\n padding: 20px; margin: 2em 0; border-radius: 4px;\n}\n.info-box {\n background: #ECFDF5; border-left: 5px solid #10B981;\n padding: 20px; margin: 2em 0; border-radius: 4px;\n}\n.case-box {\n background: #F8FAFC; border-left: 5px solid #64748B;\n padding: 20px; margin: 2em 0; border-radius: 4px;\n}\n.checklist-box {\n background: #ECFDF5; border-left: 5px solid #10B981;\n padding: 20px; margin: 2em 0; border-radius: 4px;\n}\n.warning-box {\n background: #FEF3C7; border-left: 5px solid #F59E0B;\n padding: 20px; margin: 2em 0; border-radius: 4px;\n}\n.success-box {\n background: #ECFDF5; border-left: 5px solid #059669;\n padding: 20px; margin: 2em 0; border-radius: 4px;\n}\n.note-text {\n font-size: 0.9em; color: #666;\n text-align: right; margin-top: 1em;\n}\n.intro-section {\n background: #F0FDF4; padding: 20px;\n margin: 2em 0; border-radius: 8px;\n border: 1px solid #D1FAE5;\n}\n\n\/* ==============================\n \u30b7\u30ea\u30fc\u30ba\u30a4\u30f3\u30c7\u30c3\u30af\u30b9\uff08\u30b0\u30ea\u30fc\u30f3\u7cfb\uff09\n ============================== *\/\n.series-index {\n background: linear-gradient(135deg, #064E3B 0%, #065F46 60%, #059669 100%);\n border-radius: 10px;\n padding: 24px 28px;\n margin: 1.5em 0 2em 0;\n color: #fff;\n}\n.series-index-header {\n display: flex; align-items: center;\n gap: 10px; margin-bottom: 10px;\n}\n.series-month-badge {\n background: #FCD34D; color: #064E3B;\n font-size: 0.75rem; font-weight: 900;\n padding: 3px 10px; border-radius: 20px;\n letter-spacing: 0.05em;\n}\n.series-title-label {\n font-size: 0.78rem; color: #A7F3D0;\n font-weight: 500; letter-spacing: 0.08em;\n}\n.series-index-main-title {\n font-size: 1.25rem; font-weight: 900;\n color: #ffffff; margin-bottom: 16px;\n letter-spacing: 0.02em;\n border-bottom: 1px solid rgba(255,255,255,0.2);\n padding-bottom: 12px;\n}\n.series-index-list {\n list-style: none; margin: 0; padding: 0;\n display: flex; flex-direction: column; gap: 8px;\n}\n.series-index-item {\n display: flex; align-items: baseline; gap: 10px;\n padding: 8px 12px; border-radius: 6px;\n font-size: 0.9rem; color: #A7F3D0;\n border: 1px solid transparent;\n}\n.series-index-item.done {\n color: #6EE7B7;\n transition: background 0.2s ease;\n}\n.series-index-item.done:hover {\n background: rgba(255,255,255,0.08);\n border-color: rgba(255,255,255,0.2);\n cursor: pointer;\n}\n.series-index-item.current {\n background: rgba(255,255,255,0.12);\n border-color: rgba(255,255,255,0.25);\n color: #ffffff;\n}\n.series-index-item.upcoming {\n color: #6EE7B7; opacity: 0.65;\n}\n.ep-link {\n display: flex; align-items: baseline;\n gap: 10px; width: 100%;\n color: inherit; text-decoration: none;\n}\n.ep-link:hover .ep-title {\n text-decoration: underline;\n text-underline-offset: 3px;\n}\n.ep-num {\n font-size: 0.72rem; font-weight: 700;\n background: rgba(255,255,255,0.15);\n color: #D1FAE5; padding: 2px 8px;\n border-radius: 20px; white-space: nowrap;\n flex-shrink: 0;\n}\n.series-index-item.done .ep-num {\n background: rgba(255,255,255,0.1);\n color: #6EE7B7;\n}\n.series-index-item.current .ep-num {\n background: #FCD34D; color: #064E3B;\n}\n.ep-title { flex: 1; line-height: 1.5; }\n.ep-badge-done {\n font-size: 0.7rem; font-weight: 700;\n background: rgba(255,255,255,0.15);\n color: #6EE7B7; padding: 2px 8px;\n border-radius: 20px; white-space: nowrap;\n flex-shrink: 0;\n}\n.ep-badge-now {\n font-size: 0.7rem; font-weight: 700;\n background: #FCD34D; color: #064E3B;\n padding: 2px 8px; border-radius: 20px;\n white-space: nowrap; flex-shrink: 0;\n animation: pulse-badge 2s ease-in-out infinite;\n}\n.ep-badge-next {\n font-size: 0.7rem; font-weight: 700;\n background: rgba(255,255,255,0.1);\n color: #A7F3D0; padding: 2px 8px;\n border-radius: 20px; white-space: nowrap;\n flex-shrink: 0;\n}\n@keyframes pulse-badge {\n 0%, 100% { opacity: 1; }\n 50% { opacity: 0.6; }\n}\n\n\/* ==============================\n \u7d71\u8a08\u30ab\u30fc\u30c9\uff08\u30b0\u30ea\u30fc\u30f3\u7cfb\uff09\n ============================== *\/\n.stat-row { display: flex; gap: 16px; flex-wrap: wrap; margin: 2em 0; }\n.stat-card {\n flex: 1 1 160px; background: #ECFDF5;\n border: 1px solid #A7F3D0; border-radius: 8px;\n padding: 18px 16px; text-align: center;\n}\n.stat-card .num {\n font-size: 2.0rem; font-weight: 900;\n color: #065F46; line-height: 1.1;\n}\n.stat-card .unit { font-size: 0.8rem; color: #059669; margin-top: 4px; }\n.stat-card .label { font-size: 0.78rem; color: #475569; margin-top: 6px; }\n\n\/* ==============================\n \u4e8b\u4f8b\u30ab\u30fc\u30c9\n ============================== *\/\n.incident-card {\n border: 1px solid #E2E8F0;\n border-radius: 8px;\n padding: 20px 24px;\n margin: 1.2em 0;\n background: #fff;\n position: relative;\n overflow: hidden;\n}\n.incident-card::before {\n content: \"\";\n position: absolute;\n left: 0; top: 0; bottom: 0;\n width: 5px;\n background: #059669;\n}\n.incident-card.red::before { background: #DC2626; }\n.incident-card.orange::before { background: #F59E0B; }\n.incident-card.yellow::before { background: #EAB308; }\n.incident-header {\n display: flex;\n align-items: flex-start;\n justify-content: space-between;\n flex-wrap: wrap;\n gap: 8px;\n margin-bottom: 10px;\n}\n.incident-year {\n font-size: 0.75rem; font-weight: 700;\n color: #059669; background: #ECFDF5;\n padding: 2px 10px; border-radius: 20px;\n white-space: nowrap;\n}\n.incident-card.red .incident-year { color: #DC2626; background: #FEF2F2; }\n.incident-card.orange .incident-year { color: #D97706; background: #FEF3C7; }\n.incident-title {\n font-size: 1.05rem; font-weight: 700;\n color: #1e293b; margin: 0 0 8px 0;\n line-height: 1.4;\n}\n.incident-body { font-size: 0.9rem; color: #475569; line-height: 1.7; }\n\n\/* ==============================\n MFA\u30ec\u30d9\u30eb\u6bd4\u8f03\n ============================== *\/\n.mfa-table {\n width: 100%; border-collapse: collapse;\n margin: 1.5em 0; font-size: 0.88rem;\n}\n.mfa-table th {\n background: #065F46; color: #fff;\n padding: 10px 14px; text-align: left;\n font-weight: 700;\n}\n.mfa-table td {\n padding: 10px 14px;\n border-bottom: 1px solid #E2E8F0;\n vertical-align: top;\n color: #475569;\n}\n.mfa-table tr:nth-child(even) td { background: #F8FAFC; }\n.mfa-table .level-high { color: #059669; font-weight: 700; }\n.mfa-table .level-mid { color: #D97706; font-weight: 700; }\n.mfa-table .level-low { color: #DC2626; font-weight: 700; }\n\n\/* ==============================\n \u30d1\u30b9\u30ef\u30fc\u30c9\u30de\u30cd\u30fc\u30b8\u30e3\u30fc\u6bd4\u8f03\n ============================== *\/\n.pm-card {\n border: 1px solid #E2E8F0; border-radius: 8px;\n padding: 18px 20px; margin: 1em 0;\n background: #fff; position: relative; overflow: hidden;\n}\n.pm-card::before {\n content: \"\"; position: absolute;\n left: 0; top: 0; bottom: 0; width: 5px;\n background: #10B981;\n}\n.pm-name {\n font-size: 1.05rem; font-weight: 700; color: #065F46;\n margin: 0 0 6px 0;\n}\n.pm-meta { font-size: 0.82rem; color: #9CA3AF; margin-bottom: 10px; }\n.pm-desc { font-size: 0.9rem; color: #475569; line-height: 1.7; margin: 0; }\n\n\/* ==============================\n \u30c1\u30a7\u30c3\u30af\u30ea\u30b9\u30c8\n ============================== *\/\n.checklist-section { margin: 1.5em 0; }\n.checklist-category {\n font-size: 1rem; font-weight: 700;\n color: #065F46;\n margin: 1.2em 0 0.6em 0;\n padding-bottom: 4px;\n border-bottom: 2px solid #A7F3D0;\n}\n.checklist-items { list-style: none; margin: 0; padding: 0; }\n.checklist-items li {\n display: flex; align-items: flex-start;\n gap: 10px; padding: 7px 0;\n border-bottom: 1px dotted #D1FAE5;\n font-size: 0.9rem; color: #374151;\n line-height: 1.5;\n}\n.checklist-items li:last-child { border-bottom: none; }\n.check-icon {\n min-width: 20px; height: 20px;\n border: 2px solid #059669; border-radius: 4px;\n background: #fff; flex-shrink: 0;\n margin-top: 2px;\n}\n\n\/* ==============================\n \u6b21\u56de\u4e88\u544a\n ============================== *\/\n.next-issue-box {\n background: linear-gradient(135deg, #064E3B 0%, #065F46 100%);\n border-radius: 10px; padding: 24px 28px;\n margin: 3em 0 2em 0; color: #fff;\n}\n.next-issue-box .next-label {\n font-size: 0.75rem; font-weight: 700;\n color: #6EE7B7; letter-spacing: 0.1em;\n margin-bottom: 8px;\n}\n.next-issue-box h3 {\n font-size: 1.3rem; font-weight: 900;\n color: #fff; margin: 0 0 10px 0;\n border-left: none; padding-left: 0;\n}\n.next-issue-box p { font-size: 0.9rem; color: #A7F3D0; margin: 0; }\n\n\/* ==============================\n \u53c2\u8003\u60c5\u5831\u30fb\u9023\u7d61\u5148\n ============================== *\/\n.ref-list { list-style: none; margin: 0; padding: 0; }\n.ref-list li {\n padding: 6px 0;\n border-bottom: 1px solid #E2E8F0;\n font-size: 0.88rem;\n}\n.ref-list li:last-child { border-bottom: none; }\n.ref-list a { color: #059669; word-break: break-all; }\n.ref-list a:hover { text-decoration: underline; }\n\n.contact-block {\n background: #F0FDF4; border: 1px solid #D1FAE5;\n border-radius: 8px; padding: 20px 24px;\n margin: 2em 0; font-size: 0.88rem;\n color: #374151; line-height: 2.0;\n}\n.contact-block strong {\n display: block; font-size: 1rem;\n color: #065F46; margin-bottom: 6px;\n}\n\n@media (max-width: 600px) {\n .risk-report h1 { font-size: 1.5rem; }\n .risk-report h2 { font-size: 1.3rem; }\n .stat-row { gap: 10px; }\n .stat-card .num { font-size: 1.6rem; }\n .series-index { padding: 18px 16px; }\n}\n<\/style>\n<\/head>\n<body>\n<div class=\"web-container\">\n<div class=\"risk-report\">\n\n <p class=\"note-text\">\u30b5\u30a4\u30d0\u30fc\u30ec\u30b8\u30ea\u30a8\u30f3\u30b9\u682a\u5f0f\u4f1a\u793e \u30e1\u30fc\u30eb\u30de\u30ac\u30b8\u30f3 \uff0f 2026\u5e744\u6708\u53f7 \u7b2c3\u56de<\/p>\n\n <h1>\u30d1\u30b9\u30ef\u30fc\u30c9\u3068MFA\u3067\u5b88\u308b<br>\u2015 \u8a8d\u8a3c\u5f37\u5316\u306e\u5b9f\u8df5\u30ac\u30a4\u30c9<\/h1>\n\n \n <div class=\"series-index\">\n <div class=\"series-index-header\">\n <span class=\"series-month-badge\">2026\u5e744\u6708\u53f7<\/span>\n <span class=\"series-title-label\">\u51684\u56de\u30b7\u30ea\u30fc\u30ba<\/span>\n <\/div>\n <div class=\"series-index-main-title\">\ud83d\udee1\ufe0f \u793e\u4f1a\u4eba1\u5e74\u76ee\u306e\u30b5\u30a4\u30d0\u30fc\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u57fa\u672c<\/div>\n <ul class=\"series-index-list\">\n <li class=\"series-index-item done\">\n <a class=\"ep-link\" href=\"https:\/\/japan-resilience.co.jp\/cyber\/2026\/04\/01\/newsletter-cybersecurity-newemployee-why-targeted\/\">\n <span class=\"ep-num\">\u7b2c1\u56de<\/span>\n <span class=\"ep-title\">\u653b\u6483\u8005\u306f\u3042\u306a\u305f\u3092\u72d9\u3063\u3066\u3044\u308b \u2015 \u65b0\u5165\u793e\u54e1\u304c\u72d9\u308f\u308c\u308b\u7406\u7531<\/span>\n <span class=\"ep-badge-done\">\u914d\u4fe1\u6e08\u307f<\/span>\n <\/a>\n <\/li>\n <li class=\"series-index-item done\">\n <a class=\"ep-link\" href=\"https:\/\/japan-resilience.co.jp\/cyber\/2026\/04\/08\/newsletter-cybersecurity-phishing-ai-email\/\">\n <span class=\"ep-num\">\u7b2c2\u56de<\/span>\n <span class=\"ep-title\">\u305d\u306e\u30e1\u30fc\u30eb\u3001\u672c\u7269\u3067\u3059\u304b\uff1f \u2015 \u30d5\u30a3\u30c3\u30b7\u30f3\u30b0\u30fb\u751f\u6210AI\u8a50\u6b3a\u306e\u898b\u5206\u3051\u65b9<\/span>\n <span class=\"ep-badge-done\">\u914d\u4fe1\u6e08\u307f<\/span>\n <\/a>\n <\/li>\n <li class=\"series-index-item current\">\n <span class=\"ep-num\">\u7b2c3\u56de<\/span>\n <span class=\"ep-title\">\u30d1\u30b9\u30ef\u30fc\u30c9\u3068MFA\u3067\u5b88\u308b \u2015 \u8a8d\u8a3c\u5f37\u5316\u306e\u5b9f\u8df5\u30ac\u30a4\u30c9<\/span>\n <span class=\"ep-badge-now\">\u4eca\u56de<\/span>\n <\/li>\n <li class=\"series-index-item upcoming\">\n <span class=\"ep-num\">\u7b2c4\u56de<\/span>\n <span class=\"ep-title\">SNS\u3067\u60c5\u5831\u3092\u5b88\u308b \u2015 \u30d7\u30e9\u30a4\u30d0\u30b7\u30fc\u7ba1\u7406\u3068\u904e\u5270\u5171\u6709\u30ea\u30b9\u30af<\/span>\n <span class=\"ep-badge-next\">4\/22\u914d\u4fe1\u4e88\u5b9a<\/span>\n <\/li>\n <\/ul>\n <\/div>\n\n \n <div class=\"intro-section\">\n <p>\u300c\u30d1\u30b9\u30ef\u30fc\u30c9\u306f\u5b9a\u671f\u7684\u306b\u5909\u3048\u307e\u3057\u3087\u3046\u300d\u2015\u2015\u305d\u3046\u8a00\u308f\u308c\u3066\u304d\u305f\u6642\u4ee3\u306f\u7d42\u308f\u308a\u307e\u3057\u305f\u3002\u73fe\u4ee3\u306e\u653b\u6483\u8005\u306f\u3001\u3042\u306a\u305f\u306e\u30d1\u30b9\u30ef\u30fc\u30c9\u3092<strong>\u6570\u79d2\u3067\u8a66\u3057\u3001\u6570\u5206\u3067\u7a81\u7834\u3057\u307e\u3059\u3002<\/strong>\u5927\u5207\u306a\u306e\u306f\u300c\u8907\u96d1\u3055\u00d7\u7ba1\u7406\u30c4\u30fc\u30eb\u00d7\u591a\u8981\u7d20\u8a8d\u8a3c\uff08MFA\uff09\u300d\u306e\u7d44\u307f\u5408\u308f\u305b\u3067\u3059\u3002<\/p>\n <p>Verizon DBIR 2025\u306b\u3088\u308c\u3070\u3001\u4fb5\u5bb3\u306e\u521d\u671f\u30a2\u30af\u30bb\u30b9\u7d4c\u8def\u306e<strong>22%\u304c\u8a8d\u8a3c\u60c5\u5831\u306e\u76d7\u7528<\/strong>\u3067\u3042\u308a\u3001Web\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u653b\u6483\u306b\u9650\u5b9a\u3059\u308b\u3068<strong>88%<\/strong>\u304c\u76d7\u307e\u308c\u305f\u8a8d\u8a3c\u60c5\u5831\u3092\u4f7f\u7528\u3057\u3066\u3044\u307e\u3059\u3002\u4eca\u53f7\u3067\u306f\u3001\u65b0\u5165\u793e\u54e1\u3067\u3082\u4eca\u65e5\u304b\u3089\u5b9f\u8df5\u3067\u304d\u308b\u8a8d\u8a3c\u5f37\u5316\u306e\u5177\u4f53\u7684\u30b9\u30c6\u30c3\u30d7\u3092\u304a\u5c4a\u3051\u3057\u307e\u3059\u3002<\/p>\n <\/div>\n\n \n <div class=\"stat-row\">\n <div class=\"stat-card\">\n <div class=\"num\">99.99%<\/div>\n <div class=\"unit\">\u4ee5\u4e0a\u306eMFA\u6709\u52b9\u30a2\u30ab\u30a6\u30f3\u30c8\u304c\u5b89\u5168\u3092\u7dad\u6301<\/div>\n <div class=\"label\">Microsoft Research 2023\uff08\u65e7\u6765\u7d71\u8a0899.9%\u304b\u3089\u66f4\u65b0\uff09<\/div>\n <\/div>\n <div class=\"stat-card\">\n <div class=\"num\">22%<\/div>\n <div class=\"unit\">\u306e\u4fb5\u5bb3\u304c\u8a8d\u8a3c\u60c5\u5831\u76d7\u7528\u3092\u521d\u671f\u7d4c\u8def\u306b\u4f7f\u7528<\/div>\n <div class=\"label\">Verizon DBIR 2025\uff08Web\u30a2\u30d7\u30ea\u653b\u6483\u9650\u5b9a\u3067\u306f88%\uff09<\/div>\n <\/div>\n <div class=\"stat-card\">\n <div class=\"num\">\u6570\u5341\u5104\u4ef6<\/div>\n <div class=\"unit\">\u898f\u6a21\u306e\u6d41\u51fa\u30d1\u30b9\u30ef\u30fc\u30c9\u304c\u6d41\u901a\u4e2d<\/div>\n <div class=\"label\">Have I Been Pwned\uff082025\u5e74\u306b13\u5104\u4ef6\u8d85\u3092\u65b0\u898f\u8ffd\u52a0\uff09<\/div>\n <\/div>\n <div class=\"stat-card\">\n <div class=\"num\">69%<\/div>\n <div class=\"unit\">\u306e\u7d44\u7e54\u304cID\u4fb5\u5bb3\u3092\u7d4c\u9a13\uff08\u524d\u5e74\u6bd4\uff0b27pt\uff09<\/div>\n <div class=\"label\">RSA ID IQ Report 2026\uff08\u30b0\u30ed\u30fc\u30d0\u30eb\u8abf\u67fb\uff09<\/div>\n <\/div>\n <\/div>\n\n \n <h2>\u7b2c1\u7ae0\uff1a\u306a\u305c\u30d1\u30b9\u30ef\u30fc\u30c9\u3060\u3051\u3067\u306f\u8db3\u308a\u306a\u3044\u306e\u304b<\/h2>\n\n <p>\u591a\u304f\u306e\u4eba\u304c\u300c\u81ea\u5206\u306e\u30d1\u30b9\u30ef\u30fc\u30c9\u306f\u5b89\u5168\u3060\u300d\u3068\u601d\u3063\u3066\u3044\u307e\u3059\u3002\u3057\u304b\u3057\u73fe\u5b9f\u306b\u306f\u3001\u3042\u306a\u305f\u304c\u4f7f\u3063\u3066\u3044\u308b\u30b5\u30fc\u30d3\u30b9\u306e\u4e00\u3064\u304c\u904e\u53bb\u306b\u6f0f\u6d29\u3057\u3066\u3044\u308c\u3070\u3001\u305d\u306e\u30d1\u30b9\u30ef\u30fc\u30c9\u306f\u3059\u3067\u306b\u653b\u6483\u8005\u306e\u30ea\u30b9\u30c8\u306b\u8f09\u3063\u3066\u3044\u307e\u3059\u3002<\/p>\n\n <div class=\"alert-box\">\n <strong>\u26a0\ufe0f \u300c\u4f7f\u3044\u56de\u3057\u300d\u304c\u6700\u5927\u306e\u8105\u5a01<\/strong>\n <p style=\"margin:0.5em 0 0;\">\u540c\u3058\u30d1\u30b9\u30ef\u30fc\u30c9\u3092\u8907\u6570\u30b5\u30fc\u30d3\u30b9\u3067\u4f7f\u3044\u56de\u3059\u3068\u3001\u4e00\u7b87\u6240\u304c\u6f0f\u6d29\u3057\u305f\u77ac\u9593\u306b\u5168\u30a2\u30ab\u30a6\u30f3\u30c8\u304c\u5371\u967a\u306b\u3055\u3089\u3055\u308c\u307e\u3059\uff08\u30af\u30ec\u30c7\u30f3\u30b7\u30e3\u30eb\u30b9\u30bf\u30c3\u30d5\u30a3\u30f3\u30b0\u653b\u6483\uff09\u3002\u653b\u6483\u8005\u306f\u30c4\u30fc\u30eb\u3092\u4f7f\u3063\u3066<strong>\u6bce\u79d2\u6570\u5343\u56de<\/strong>\u306e\u30ed\u30b0\u30a4\u30f3\u8a66\u884c\u3092\u81ea\u52d5\u5316\u3057\u307e\u3059\u3002<\/p>\n <\/div>\n\n <h3>\u30d1\u30b9\u30ef\u30fc\u30c9\u304c\u7834\u3089\u308c\u308b3\u3064\u306e\u4e3b\u306a\u65b9\u6cd5<\/h3>\n\n <div class=\"incident-card red\">\n <div class=\"incident-header\">\n <p class=\"incident-title\">\u2460 \u30af\u30ec\u30c7\u30f3\u30b7\u30e3\u30eb\u30b9\u30bf\u30c3\u30d5\u30a3\u30f3\u30b0<\/p>\n <span class=\"incident-year\">\u6700\u591a\u653b\u6483\u624b\u6cd5<\/span>\n <\/div>\n <div class=\"incident-body\">\n \u904e\u53bb\u306e\u6f0f\u6d29\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\uff08\u6570\u5341\u5104\u4ef6\u898f\u6a21\u3001HIBP\u306f2025\u5e74\u306b13\u5104\u4ef6\u8d85\u3092\u65b0\u898f\u8ffd\u52a0\uff09\u306b\u8f09\u3063\u3066\u3044\u308bID\u30fb\u30d1\u30b9\u30ef\u30fc\u30c9\u3092\u81ea\u52d5\u3067\u8a66\u3057\u7d9a\u3051\u308b\u653b\u6483\u3002\u4f7f\u3044\u56de\u3057\u3092\u3057\u3066\u3044\u308b\u3068\u3001\u898b\u77e5\u3089\u306c\u30b5\u30fc\u30d3\u30b9\u306e\u6f0f\u6d29\u304c\u3042\u306a\u305f\u306e\u30a2\u30ab\u30a6\u30f3\u30c8\u3092\u5371\u967a\u306b\u3055\u3089\u3057\u307e\u3059\u3002Verizon DBIR 2025\u3067\u306f\u3001\u8a8d\u8a3c\u8a66\u884c\u306e\u4e2d\u592e\u502419%\u304c\u30af\u30ec\u30c7\u30f3\u30b7\u30e3\u30eb\u30b9\u30bf\u30c3\u30d5\u30a3\u30f3\u30b0\u3067\u3042\u308b\u3068\u5831\u544a\u3055\u308c\u3066\u3044\u307e\u3059\u3002\n <\/div>\n <\/div>\n\n <div class=\"incident-card orange\">\n <div class=\"incident-header\">\n <p class=\"incident-title\">\u2461 \u30d5\u30a3\u30c3\u30b7\u30f3\u30b0\u306b\u3088\u308b\u8a8d\u8a3c\u60c5\u5831\u306e\u8a50\u53d6<\/p>\n <span class=\"incident-year\">\u9ad8\u5ea6\u5316\u304c\u9032\u3080<\/span>\n <\/div>\n <div class=\"incident-body\">\n \u7b2c2\u56de\u3067\u3082\u89e3\u8aac\u3057\u305f\u507d\u30e1\u30fc\u30eb\u30fb\u507d\u30b5\u30a4\u30c8\u3078\u8a98\u5c0e\u3057\u3001\u672c\u7269\u3068\u898b\u5206\u3051\u304c\u3064\u304b\u306a\u3044\u30ed\u30b0\u30a4\u30f3\u753b\u9762\u3067ID\u30fb\u30d1\u30b9\u30ef\u30fc\u30c9\u3092\u5165\u529b\u3055\u305b\u308b\u624b\u6cd5\u3002AI\u751f\u6210\u306e\u5de7\u5999\u306a\u6587\u7ae0\u306b\u3088\u308a\u3001\u5f93\u6765\u306e\u300c\u602a\u3057\u3044\u65e5\u672c\u8a9e\u300d\u3067\u306e\u8b58\u5225\u304c\u901a\u7528\u3057\u306a\u304f\u306a\u3063\u3066\u3044\u307e\u3059\u3002\n <\/div>\n <\/div>\n\n <div class=\"incident-card\">\n <div class=\"incident-header\">\n <p class=\"incident-title\">\u2462 \u30d6\u30eb\u30fc\u30c8\u30d5\u30a9\u30fc\u30b9\u30fb\u8f9e\u66f8\u653b\u6483<\/p>\n <span class=\"incident-year\">\u5358\u7d14\u3060\u304c\u6709\u52b9<\/span>\n <\/div>\n <div class=\"incident-body\">\n \u300cpassword123\u300d\u300c\u793e\u540d+\u751f\u5e74\u6708\u65e5\u300d\u306a\u3069\u3001\u3088\u304f\u4f7f\u308f\u308c\u308b\u30d1\u30bf\u30fc\u30f3\u3092\u7dcf\u5f53\u305f\u308a\u3067\u8a66\u3059\u653b\u6483\u3002\u30af\u30e9\u30a6\u30c9\u306e\u8a08\u7b97\u30ea\u30bd\u30fc\u30b9\u3092\u4f7f\u3048\u3070\u30018\u6587\u5b57\u306e\u5358\u7d14\u306a\u30d1\u30b9\u30ef\u30fc\u30c9\u306f\u6570\u6642\u9593\u3067\u89e3\u8aad\u3055\u308c\u307e\u3059\u3002\u9577\u304f\u30e9\u30f3\u30c0\u30e0\u306a\u30d1\u30b9\u30ef\u30fc\u30c9\u304c\u57fa\u672c\u3067\u3059\u3002\n <\/div>\n <\/div>\n\n \n <h2>\u7b2c2\u7ae0\uff1aMFA\uff08\u591a\u8981\u7d20\u8a8d\u8a3c\uff09\u3067\u300c\u9375\u3092\u4e8c\u91cd\u306b\u304b\u3051\u308b\u300d<\/h2>\n\n <p>MFA\uff08Multi-Factor Authentication\uff09\u3068\u306f\u3001\u30d1\u30b9\u30ef\u30fc\u30c9\u306b\u52a0\u3048\u3066<strong>\u3082\u3046\u4e00\u3064\u306e\u78ba\u8a8d\u624b\u6bb5<\/strong>\u3092\u8981\u6c42\u3059\u308b\u8a8d\u8a3c\u65b9\u5f0f\u3067\u3059\u3002Microsoft\u306e\u6700\u65b0\u7814\u7a76\uff082023\u5e74\uff09\u306b\u3088\u308c\u3070\u3001MFA\u6709\u52b9\u30a2\u30ab\u30a6\u30f3\u30c8\u306e<strong>99.99%\u4ee5\u4e0a<\/strong>\u304c\u8abf\u67fb\u671f\u9593\u4e2d\u306b\u5b89\u5168\u3092\u7dad\u6301\u3057\u3066\u304a\u308a\u3001\u81ea\u52d5\u5316\u653b\u6483\u306b\u5bfe\u3057\u3066\u6975\u3081\u3066\u9ad8\u3044\u9632\u5fa1\u52b9\u679c\u304c\u78ba\u8a8d\u3055\u308c\u3066\u3044\u307e\u3059\u3002<\/p>\n\n <div class=\"info-box\">\n <strong>\ud83d\udd11 \u8a8d\u8a3c\u306e\u300c3\u8981\u7d20\u300d<\/strong>\n <ul style=\"margin-top:0.8em;\">\n <li><strong>\u77e5\u8b58\u8981\u7d20<\/strong>\uff1a\u30d1\u30b9\u30ef\u30fc\u30c9\u30fbPIN\u30b3\u30fc\u30c9\uff08\u3042\u306a\u305f\u304c\u300c\u77e5\u3063\u3066\u3044\u308b\u300d\u3082\u306e\uff09<\/li>\n <li><strong>\u6240\u6301\u8981\u7d20<\/strong>\uff1a\u30b9\u30de\u30fc\u30c8\u30d5\u30a9\u30f3\u30fb\u30cf\u30fc\u30c9\u30a6\u30a7\u30a2\u30ad\u30fc\uff08\u3042\u306a\u305f\u304c\u300c\u6301\u3063\u3066\u3044\u308b\u300d\u3082\u306e\uff09<\/li>\n <li><strong>\u751f\u4f53\u8981\u7d20<\/strong>\uff1a\u6307\u7d0b\u30fb\u9854\u8a8d\u8a3c\uff08\u3042\u306a\u305f\u304c\u300c\u305d\u306e\u3082\u306e\u300d\u3067\u3042\u308b\u3053\u3068\uff09<\/li>\n <\/ul>\n <p style=\"margin-top:0.8em;\">MFA\u306f\u300c\u77e5\u8b58\u300d\uff0b\u300c\u6240\u6301 or \u751f\u4f53\u300d\u306e\u7d44\u307f\u5408\u308f\u305b\u3067\u30011\u8981\u7d20\u304c\u76d7\u307e\u308c\u3066\u3082\u7a81\u7834\u3055\u308c\u307e\u305b\u3093\u3002<\/p>\n <\/div>\n\n <h3>MFA\u306e\u7a2e\u985e\u3068\u5b89\u5168\u30ec\u30d9\u30eb\u6bd4\u8f03<\/h3>\n\n <table class=\"mfa-table\">\n <tr>\n <th>MFA\u65b9\u5f0f<\/th>\n <th>\u5b89\u5168\u30ec\u30d9\u30eb<\/th>\n <th>\u7279\u5fb4<\/th>\n <th>\u304a\u3059\u3059\u3081\u5ea6<\/th>\n <\/tr>\n <tr>\n <td><strong>\u30cf\u30fc\u30c9\u30a6\u30a7\u30a2\u30ad\u30fc<\/strong><br>\uff08YubiKey\u7b49\uff09<\/td>\n <td class=\"level-high\">\u2605\u2605\u2605 \u6700\u9ad8<\/td>\n <td>\u7269\u7406\u30c7\u30d0\u30a4\u30b9\u3067\u306e\u8a8d\u8a3c\u3002\u30d5\u30a3\u30c3\u30b7\u30f3\u30b0\u306b\u5b8c\u5168\u8010\u6027<\/td>\n <td>\u91cd\u8981\u696d\u52d9\u30fb\u7ba1\u7406\u8005\u5411\u3051<\/td>\n <\/tr>\n <tr>\n <td><strong>\u8a8d\u8a3c\u30a2\u30d7\u30ea<\/strong><br>\uff08Google Authenticator\u7b49\uff09<\/td>\n <td class=\"level-high\">\u2605\u2605\u2605 \u9ad8<\/td>\n <td>6\u6841\u306e\u30ef\u30f3\u30bf\u30a4\u30e0\u30b3\u30fc\u30c9\u3092\u751f\u6210\u3002\u30aa\u30d5\u30e9\u30a4\u30f3\u3067\u3082\u52d5\u4f5c<\/td>\n <td>\u2705 \u4e00\u822c\u696d\u52d9\u306b\u6700\u9069<\/td>\n <\/tr>\n <tr>\n <td><strong>\u30d1\u30b9\u30ad\u30fc<\/strong><br>\uff08Face ID\/\u6307\u7d0b\u8a8d\u8a3c\uff09<\/td>\n <td class=\"level-high\">\u2605\u2605\u2605 \u9ad8<\/td>\n <td>\u6b21\u4e16\u4ee3\u6a19\u6e96\u3002\u30d1\u30b9\u30ef\u30fc\u30c9\u4e0d\u8981\u3067\u30d5\u30a3\u30c3\u30b7\u30f3\u30b0\u8010\u6027\u3042\u308a<\/td>\n <td>\u2705 \u4eca\u5f8c\u306e\u4e3b\u6d41<\/td>\n <\/tr>\n <tr>\n <td><strong>\u30d7\u30c3\u30b7\u30e5\u901a\u77e5<\/strong><br>\uff08Microsoft Authenticator\u7b49\uff09<\/td>\n <td class=\"level-mid\">\u2605\u2605 \u4e2d<\/td>\n <td>\u30b9\u30de\u30db\u3078\u306e\u627f\u8a8d\u901a\u77e5\u3002MFA\u75b2\u52b4\u653b\u6483\u306b\u6ce8\u610f\u304c\u5fc5\u8981<\/td>\n <td>\u8a2d\u5b9a\u6b21\u7b2c\u3067\u6709\u52b9<\/td>\n <\/tr>\n <tr>\n <td><strong>SMS\u30fb\u30e1\u30fc\u30ebOTP<\/strong><\/td>\n <td class=\"level-low\">\u2605 \u4f4e<\/td>\n <td>\u624b\u8efd\u3060\u304cSIM\u30b9\u30ef\u30c3\u30d7\u30fb\u508d\u53d7\u30ea\u30b9\u30af\u3042\u308a<\/td>\n <td>\u4ed6\u306e\u65b9\u5f0f\u304c\u306a\u3044\u5834\u5408\u306e\u307f<\/td>\n <\/tr>\n <\/table>\n\n <div class=\"warning-box\">\n <strong>\u26a1 \u300cMFA\u75b2\u52b4\u653b\u6483\u300d\u306b\u6ce8\u610f<\/strong>\n <p style=\"margin:0.5em 0 0;\">\u653b\u6483\u8005\u304c\u5927\u91cf\u306eMFA\u627f\u8a8d\u30ea\u30af\u30a8\u30b9\u30c8\u3092\u9001\u308a\u7d9a\u3051\u3001\u5229\u7528\u8005\u304c\u75b2\u308c\u3066\u300c\u627f\u8a8d\u300d\u3092\u62bc\u3057\u3066\u3057\u307e\u3046\u3053\u3068\u3092\u72d9\u3046\u624b\u6cd5\u304c\u6025\u5897\u3057\u3066\u3044\u307e\u3059\u3002<strong>\u300c\u8eab\u306b\u899a\u3048\u306e\u306a\u3044MFA\u901a\u77e5\u306f\u7d76\u5bfe\u306b\u627f\u8a8d\u3057\u306a\u3044\u3053\u3068\u300d<\/strong>\u304c\u30eb\u30fc\u30eb\u3067\u3059\u3002\u4e0d\u5be9\u306a\u901a\u77e5\u304c\u5c4a\u3044\u305f\u3089\u3001\u3059\u3050\u306bIT\u62c5\u5f53\u8005\u3078\u5831\u544a\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n <\/div>\n\n \n <h2>\u7b2c3\u7ae0\uff1a\u30d1\u30b9\u30ef\u30fc\u30c9\u30de\u30cd\u30fc\u30b8\u30e3\u30fc\u3067\u300c\u899a\u3048\u306a\u3044\u7ba1\u7406\u300d\u3092\u5b9f\u73fe<\/h2>\n\n <p>\u300c\u3059\u3079\u3066\u306e\u30b5\u30fc\u30d3\u30b9\u306b\u7570\u306a\u308b\u9577\u3044\u30d1\u30b9\u30ef\u30fc\u30c9\u3092\u4f7f\u3046\u300d\u306e\u304c\u7406\u60f3\u3067\u3059\u304c\u3001\u4eba\u9593\u306e\u8a18\u61b6\u306b\u306f\u9650\u754c\u304c\u3042\u308a\u307e\u3059\u3002\u305d\u3053\u3067\u6d3b\u8e8d\u3059\u308b\u306e\u304c<strong>\u30d1\u30b9\u30ef\u30fc\u30c9\u30de\u30cd\u30fc\u30b8\u30e3\u30fc<\/strong>\u3067\u3059\u3002\u30de\u30b9\u30bf\u30fc\u30d1\u30b9\u30ef\u30fc\u30c9\u4e00\u3064\u3067\u3001\u3059\u3079\u3066\u306e\u30a2\u30ab\u30a6\u30f3\u30c8\u3092\u5b89\u5168\u306b\u7ba1\u7406\u3067\u304d\u307e\u3059\u3002<\/p>\n\n <div class=\"pm-card\">\n <div class=\"pm-name\">\ud83d\udfe2 Bitwarden\uff08\u30d3\u30c3\u30c8\u30a6\u30a9\u30fc\u30c7\u30f3\uff09<\/div>\n <div class=\"pm-meta\">\u7121\u6599\u30d7\u30e9\u30f3\u3042\u308a \uff0f \u30aa\u30fc\u30d7\u30f3\u30bd\u30fc\u30b9 \uff0f \u5168\u30d7\u30e9\u30c3\u30c8\u30d5\u30a9\u30fc\u30e0\u5bfe\u5fdc<\/div>\n <div class=\"pm-desc\">\u500b\u4eba\u30fb\u30c1\u30fc\u30e0\u3067\u4f7f\u3048\u308b\u30aa\u30fc\u30d7\u30f3\u30bd\u30fc\u30b9\u306e\u30d1\u30b9\u30ef\u30fc\u30c9\u30de\u30cd\u30fc\u30b8\u30e3\u30fc\u3002\u7121\u6599\u3067\u3082\u4e3b\u8981\u6a5f\u80fd\u304c\u4f7f\u3048\u3001\u30bb\u30eb\u30d5\u30db\u30b9\u30c8\u3082\u53ef\u80fd\u3002\u4e2d\u5c0f\u4f01\u696d\u306e\u5165\u9580\u306b\u6700\u9069\u3002<\/div>\n <\/div>\n\n <div class=\"pm-card\">\n <div class=\"pm-name\">\ud83d\udd35 1Password\uff08\u30ef\u30f3\u30d1\u30b9\u30ef\u30fc\u30c9\uff09<\/div>\n <div class=\"pm-meta\">\u6708\u984d\u7d04400\u5186\u301c \uff0f \u30c1\u30fc\u30e0\u6a5f\u80fd\u5145\u5b9f \uff0f \u4f01\u696d\u5411\u3051<\/div>\n <div class=\"pm-desc\">UI\u304c\u6d17\u7df4\u3055\u308c\u3066\u304a\u308a\u4f7f\u3044\u3084\u3059\u3044\u3002\u30c1\u30fc\u30e0\u5411\u3051\u306e\u6a29\u9650\u7ba1\u7406\u30fb\u5171\u6709\u6a5f\u80fd\u304c\u5f37\u529b\u3002\u4f01\u696d\u5c0e\u5165\u306b\u5411\u3044\u3066\u304a\u308a\u3001SSO\u3068\u306e\u9023\u643a\u3082\u5bb9\u6613\u3002<\/div>\n <\/div>\n\n <div class=\"pm-card\">\n <div class=\"pm-name\">\ud83d\udfe1 Microsoft Authenticator \uff0b Edge \u30d1\u30b9\u30ef\u30fc\u30c9\u7ba1\u7406<\/div>\n <div class=\"pm-meta\">Microsoft 365\u30e6\u30fc\u30b6\u30fc\u306f\u8ffd\u52a0\u8cbb\u7528\u306a\u3057<\/div>\n <div class=\"pm-desc\">Microsoft 365\u3092\u5229\u7528\u4e2d\u306e\u4f01\u696d\u306a\u3089\u305d\u306e\u307e\u307e\u6d3b\u7528\u53ef\u80fd\u3002Entra ID\uff08\u65e7Azure AD\uff09\u3068\u9023\u643a\u3057\u3066\u30d1\u30b9\u30ef\u30fc\u30c9\u30ec\u30b9\u8a8d\u8a3c\u3078\u306e\u79fb\u884c\u304c\u30b9\u30e0\u30fc\u30ba\u3002<\/div>\n <\/div>\n\n <div class=\"info-box\">\n <strong>\ud83d\udccc NIST SP 800-63B \u304c\u63a8\u5968\u3059\u308b\u300c\u65b0\u3057\u3044\u30d1\u30b9\u30ef\u30fc\u30c9\u30eb\u30fc\u30eb\u300d<\/strong>\n <ul style=\"margin-top:0.8em;\">\n <li>\u2705 <strong>\u9577\u3055\u3092\u91cd\u8996<\/strong>\uff1a\u6700\u4f4e<strong>15\u6587\u5b57\u4ee5\u4e0a<\/strong>\uff08Rev.4\u30678\u6587\u5b57\u219215\u6587\u5b57\u306b\u5f15\u304d\u4e0a\u3052\uff09<\/li>\n <li>\u2705 <strong>\u5b9a\u671f\u5909\u66f4\u306f\u4e0d\u8981<\/strong>\uff1a\u6f0f\u6d29\u304c\u5224\u660e\u3057\u305f\u5834\u5408\u306e\u307f\u5909\u66f4\u3059\u308c\u3070\u3088\u3044<\/li>\n <li>\u2705 <strong>\u5168\u30b5\u30fc\u30d3\u30b9\u3067\u7570\u306a\u308b\u30d1\u30b9\u30ef\u30fc\u30c9<\/strong>\u3092\u4f7f\u7528\u3059\u308b<\/li>\n <li>\u274c <strong>\u8907\u96d1\u3055\u30eb\u30fc\u30eb\uff08\u8a18\u53f7\u5fc5\u9808\u7b49\uff09\u306f\u7981\u6b62<\/strong>\uff1aRev.4\u3067\u306f\u300cshall not\uff08\u7981\u6b62\uff09\u300d\u306b\u5f37\u5316\u6e08\u307f<\/li>\n <\/ul>\n <\/div>\n\n \n <h2>\u7b2c4\u7ae0\uff1a\u4eca\u3059\u3050\u5b9f\u8df5\u3059\u3079\u304d3\u3064\u306e\u30b9\u30c6\u30c3\u30d7<\/h2>\n\n <div class=\"success-box\">\n <h3 style=\"margin-top:0; border:none; padding:0; color:#065F46;\">\u2705 \u30b9\u30c6\u30c3\u30d71\uff1a\u307e\u305aMFA\u3092\u5168\u30a2\u30ab\u30a6\u30f3\u30c8\u306b\u8a2d\u5b9a\u3059\u308b<\/h3>\n <p>\u4ed5\u4e8b\u306e\u30e1\u30fc\u30eb\u30fb\u793e\u5185\u30b7\u30b9\u30c6\u30e0\u30fb\u30af\u30e9\u30a6\u30c9\u30b5\u30fc\u30d3\u30b9\u3001\u3059\u3079\u3066\u306bMFA\u3092\u6709\u52b9\u5316\u3057\u3066\u304f\u3060\u3055\u3044\u3002\u8a8d\u8a3c\u30a2\u30d7\u30ea\uff08Google Authenticator \/ Microsoft Authenticator\uff09\u304c\u63a8\u5968\u3067\u3059\u3002SMS\u8a8d\u8a3c\u3088\u308a\u3082\u5b89\u5168\u3067\u3001\u8a2d\u5b9a\u306f5\u5206\u3067\u5b8c\u4e86\u3057\u307e\u3059\u3002<\/p>\n <\/div>\n\n <div class=\"success-box\">\n <h3 style=\"margin-top:0; border:none; padding:0; color:#065F46;\">\u2705 \u30b9\u30c6\u30c3\u30d72\uff1a\u30d1\u30b9\u30ef\u30fc\u30c9\u30de\u30cd\u30fc\u30b8\u30e3\u30fc\u3092\u5c0e\u5165\u3057\u3066\u4f7f\u3044\u56de\u3057\u3092\u30bc\u30ed\u306b\u3059\u308b<\/h3>\n <p>\u7121\u6599\u306eBitwarden\u304b\u3089\u59cb\u3081\u3066\u307f\u307e\u3057\u3087\u3046\u3002\u307e\u305a3\u3064\u306e\u4e3b\u8981\u30a2\u30ab\u30a6\u30f3\u30c8\uff08\u4ed5\u4e8b\u30e1\u30fc\u30eb\u30fb\u793e\u5185\u30b7\u30b9\u30c6\u30e0\u30fb\u500b\u4eba\u30e1\u30fc\u30eb\uff09\u306e\u30d1\u30b9\u30ef\u30fc\u30c9\u3092\u30e9\u30f3\u30c0\u30e0\u751f\u6210\u3067\u5909\u66f4\u3057\u3001\u30de\u30cd\u30fc\u30b8\u30e3\u30fc\u306b\u4fdd\u5b58\u3059\u308b\u3068\u3053\u308d\u304b\u3089\u59cb\u3081\u308b\u3068\u7fd2\u6163\u5316\u3057\u3084\u3059\u3044\u3067\u3059\u3002<\/p>\n <\/div>\n\n <div class=\"success-box\">\n <h3 style=\"margin-top:0; border:none; padding:0; color:#065F46;\">\u2705 \u30b9\u30c6\u30c3\u30d73\uff1aHave I Been Pwned \u3067\u81ea\u5206\u306e\u30e1\u30fc\u30eb\u30a2\u30c9\u30ec\u30b9\u3092\u78ba\u8a8d\u3059\u308b<\/h3>\n <p><a href=\"https:\/\/haveibeenpwned.com\" style=\"color:#059669;\" target=\"_blank\">haveibeenpwned.com<\/a> \u306b\u30e1\u30fc\u30eb\u30a2\u30c9\u30ec\u30b9\u3092\u5165\u529b\u3059\u308b\u3068\u3001\u904e\u53bb\u306e\u6f0f\u6d29\u30a4\u30f3\u30b7\u30c7\u30f3\u30c8\u306b\u542b\u307e\u308c\u3066\u3044\u308b\u304b\u7121\u6599\u3067\u78ba\u8a8d\u3067\u304d\u307e\u3059\u3002\u300c\u6f0f\u6d29\u3042\u308a\u300d\u3068\u8868\u793a\u3055\u308c\u305f\u30b5\u30fc\u30d3\u30b9\u306f\u5373\u5ea7\u306b\u30d1\u30b9\u30ef\u30fc\u30c9\u3092\u5909\u66f4\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n <\/div>\n\n \n <h2>\u5b9f\u8df5\u30c1\u30a7\u30c3\u30af\u30ea\u30b9\u30c8 \u2015 \u30d1\u30b9\u30ef\u30fc\u30c9\u30fbMFA\u7de8<\/h2>\n\n <div class=\"checklist-box\">\n <div class=\"checklist-section\">\n <div class=\"checklist-category\">\ud83d\udd10 \u30d1\u30b9\u30ef\u30fc\u30c9\u7ba1\u7406<\/div>\n <ul class=\"checklist-items\">\n <li><span class=\"check-icon\"><\/span>\u3059\u3079\u3066\u306e\u696d\u52d9\u30a2\u30ab\u30a6\u30f3\u30c8\u3067\u7570\u306a\u308b\u30d1\u30b9\u30ef\u30fc\u30c9\u3092\u4f7f\u7528\u3057\u3066\u3044\u308b<\/li>\n <li><span class=\"check-icon\"><\/span>\u30d1\u30b9\u30ef\u30fc\u30c9\u306f15\u6587\u5b57\u4ee5\u4e0a\u306e\u30e9\u30f3\u30c0\u30e0\u6587\u5b57\u5217\u307e\u305f\u306f\u30d1\u30b9\u30d5\u30ec\u30fc\u30ba\u306b\u3057\u3066\u3044\u308b\uff08NIST SP 800-63B Rev.4\u63a8\u5968\uff09<\/li>\n <li><span class=\"check-icon\"><\/span>\u30d1\u30b9\u30ef\u30fc\u30c9\u30de\u30cd\u30fc\u30b8\u30e3\u30fc\u3092\u5c0e\u5165\u30fb\u6d3b\u7528\u3057\u3066\u3044\u308b<\/li>\n <li><span class=\"check-icon\"><\/span>Have I Been Pwned \u3067\u30e1\u30fc\u30eb\u30a2\u30c9\u30ec\u30b9\u306e\u6f0f\u6d29\u78ba\u8a8d\u3092\u884c\u3063\u305f<\/li>\n <\/ul>\n\n <div class=\"checklist-category\">\ud83d\udd11 MFA\u30fb\u8a8d\u8a3c\u8a2d\u5b9a<\/div>\n <ul class=\"checklist-items\">\n <li><span class=\"check-icon\"><\/span>\u4ed5\u4e8b\u306e\u30e1\u30fc\u30eb\u30a2\u30ab\u30a6\u30f3\u30c8\u306bMFA\u3092\u8a2d\u5b9a\u3057\u3066\u3044\u308b<\/li>\n <li><span class=\"check-icon\"><\/span>\u793e\u5185\u30b7\u30b9\u30c6\u30e0\u30fb\u30af\u30e9\u30a6\u30c9\u30b5\u30fc\u30d3\u30b9\u306bMFA\u3092\u8a2d\u5b9a\u3057\u3066\u3044\u308b<\/li>\n <li><span class=\"check-icon\"><\/span>MFA\u306fSMS\u8a8d\u8a3c\u3067\u306f\u306a\u304f\u8a8d\u8a3c\u30a2\u30d7\u30ea\u3092\u4f7f\u7528\u3057\u3066\u3044\u308b<\/li>\n <li><span class=\"check-icon\"><\/span>\u8eab\u306b\u899a\u3048\u306e\u306a\u3044MFA\u901a\u77e5\u306f\u627f\u8a8d\u305b\u305a\u3001IT\u62c5\u5f53\u8005\u306b\u5831\u544a\u3059\u308b\u7fd2\u6163\u304c\u3042\u308b<\/li>\n <\/ul>\n\n <div class=\"checklist-category\">\ud83d\udee1\ufe0f \u30a4\u30f3\u30b7\u30c7\u30f3\u30c8\u5bfe\u5fdc<\/div>\n <ul class=\"checklist-items\">\n <li><span class=\"check-icon\"><\/span>\u4e0d\u5be9\u306a\u30ed\u30b0\u30a4\u30f3\u901a\u77e5\u304c\u5c4a\u3044\u305f\u5834\u5408\u306e\u5831\u544a\u5148\u3092\u77e5\u3063\u3066\u3044\u308b<\/li>\n <li><span class=\"check-icon\"><\/span>\u30d1\u30b9\u30ef\u30fc\u30c9\u6f0f\u6d29\u304c\u7591\u308f\u308c\u308b\u5834\u5408\u306e\u5bfe\u5fdc\u624b\u9806\u3092\u628a\u63e1\u3057\u3066\u3044\u308b<\/li>\n <li><span class=\"check-icon\"><\/span>\u9000\u8077\u30fb\u7570\u52d5\u6642\u306b\u30a2\u30ab\u30a6\u30f3\u30c8\u306e\u68da\u5378\u3057\u3068\u6a29\u9650\u5909\u66f4\u3092\u884c\u3046\u4ed5\u7d44\u307f\u304c\u3042\u308b<\/li>\n <\/ul>\n <\/div>\n <\/div>\n\n \n <h2>\u307e\u3068\u3081<\/h2>\n <p>\u8a8d\u8a3c\u306e\u5f37\u5316\u306f\u3001\u30b5\u30a4\u30d0\u30fc\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u306e\u4e2d\u3067\u3082<strong>\u6700\u3082\u30b3\u30b9\u30c8\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u304c\u9ad8\u3044\u5bfe\u7b56<\/strong>\u3067\u3059\u3002MFA\u3092\u8a2d\u5b9a\u3059\u308b\u3060\u3051\u3067MFA\u6709\u52b9\u30a2\u30ab\u30a6\u30f3\u30c8\u306e99.99%\u4ee5\u4e0a\u304c\u5b89\u5168\u3092\u7dad\u6301\u3067\u304d\uff08Microsoft Research 2023\uff09\u3001\u30d1\u30b9\u30ef\u30fc\u30c9\u30de\u30cd\u30fc\u30b8\u30e3\u30fc\u3067\u4f7f\u3044\u56de\u3057\u3092\u306a\u304f\u305b\u3070\u3001\u30af\u30ec\u30c7\u30f3\u30b7\u30e3\u30eb\u30b9\u30bf\u30c3\u30d5\u30a3\u30f3\u30b0\u306e\u30ea\u30b9\u30af\u306f\u307b\u307c\u30bc\u30ed\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n <p>\u96e3\u3057\u3044\u6280\u8853\u306f\u5fc5\u8981\u3042\u308a\u307e\u305b\u3093\u3002\u4eca\u65e5\u3053\u306e\u30e1\u30fc\u30eb\u3092\u8aad\u307f\u7d42\u3048\u305f\u3089\u3001\u307e\u305a\u4e00\u3064\u306e\u30a2\u30ab\u30a6\u30f3\u30c8\u306bMFA\u3092\u8a2d\u5b9a\u3057\u3066\u307f\u3066\u304f\u3060\u3055\u3044\u3002\u305d\u308c\u304c\u7b2c\u4e00\u6b69\u3067\u3059\u3002<\/p>\n\n \n <div class=\"next-issue-box\">\n <div class=\"next-label\">\u25b6 NEXT ISSUE \u2014 4\u670822\u65e5\uff08\u6c34\uff09\u914d\u4fe1\u4e88\u5b9a<\/div>\n <h3>\u7b2c4\u56de\uff1aSNS\u3067\u60c5\u5831\u3092\u5b88\u308b \u2015 \u30d7\u30e9\u30a4\u30d0\u30b7\u30fc\u7ba1\u7406\u3068\u904e\u5270\u5171\u6709\u30ea\u30b9\u30af<\/h3>\n <p>X\uff08\u65e7Twitter\uff09\u30fbInstagram\u30fbLinkedIn\u3067\u306e\u300c\u3046\u3063\u304b\u308a\u6295\u7a3f\u300d\u304c\u3001\u3069\u306e\u3088\u3046\u306b\u653b\u6483\u8005\u306b\u60aa\u7528\u3055\u308c\u308b\u306e\u304b\u3092\u89e3\u8aac\u3057\u307e\u3059\u3002LINE\u4e57\u3063\u53d6\u308a\u30fb\u306a\u308a\u3059\u307e\u3057\u8a50\u6b3a\u306e\u6700\u65b0\u624b\u53e3\u3068\u3001\u30d7\u30e9\u30c3\u30c8\u30d5\u30a9\u30fc\u30e0\u5225\u306e\u30d7\u30e9\u30a4\u30d0\u30b7\u30fc\u8a2d\u5b9a\u3082\u7d39\u4ecb\u3057\u307e\u3059\u3002<\/p>\n <\/div>\n\n \n <h2>\u53c2\u8003\u60c5\u5831<\/h2>\n <ul class=\"ref-list\">\n <li>Microsoft Research\u300cHow effective is multifactor authentication at deterring cyberattacks?\u300d\uff082023\u5e74\u66f4\u65b0\u7248 \u2014 MFA\u6709\u52b9\u30a2\u30ab\u30a6\u30f3\u30c8\u306e99.99%\u4ee5\u4e0a\u304c\u5b89\u5168\u3092\u7dad\u6301\uff09\n <a href=\"https:\/\/cdn-dynmedia-1.microsoft.com\/is\/content\/microsoftcorp\/microsoft\/final\/en-us\/microsoft-brand\/documents\/mfa-microsoft-research-paper-update-347347.pdf\" target=\"_blank\">https:\/\/cdn-dynmedia-1.microsoft.com\/is\/content\/microsoftcorp\/microsoft\/final\/en-us\/microsoft-brand\/documents\/mfa-microsoft-research-paper-update-347347.pdf<\/a>\n <\/li>\n <li>Verizon\u300cData Breach Investigations Report 2025\u300d\uff08\u8a8d\u8a3c\u60c5\u5831\u76d7\u7528\u304c\u521d\u671f\u4fb5\u5165\u7d4c\u8def\u306e22%\u3001Web\u30a2\u30d7\u30ea\u653b\u6483\u3067\u306f88%\uff09\n <a href=\"https:\/\/www.verizon.com\/business\/resources\/reports\/dbir\/\" target=\"_blank\">https:\/\/www.verizon.com\/business\/resources\/reports\/dbir\/<\/a>\n <\/li>\n <li>Verizon DBIR 2025 \u30af\u30ec\u30c7\u30f3\u30b7\u30e3\u30eb\u30b9\u30bf\u30c3\u30d5\u30a3\u30f3\u30b0\u8a73\u7d30\u30ec\u30dd\u30fc\u30c8\uff08\u8a8d\u8a3c\u8a66\u884c\u306e\u4e2d\u592e\u502419%\u304c\u30b9\u30bf\u30c3\u30d5\u30a3\u30f3\u30b0\u653b\u6483\uff09\n <a href=\"https:\/\/www.verizon.com\/business\/resources\/articles\/credential-stuffing-attacks-2025-dbir-research\/\" target=\"_blank\">https:\/\/www.verizon.com\/business\/resources\/articles\/credential-stuffing-attacks-2025-dbir-research\/<\/a>\n <\/li>\n <li>RSA\u300c2026 ID IQ Report\u300d\uff08\u30b0\u30ed\u30fc\u30d0\u30eb69%\u306e\u7d44\u7e54\u304cID\u4fb5\u5bb3\u3092\u7d4c\u9a13\u3001\u524d\u5e74\u6bd4+27\u30dd\u30a4\u30f3\u30c8\uff09\n <a href=\"https:\/\/www.rsa.com\/news\/press-releases\/soaring-identity-costs-and-stalling-passwordless-progress-in-japan-rsa-id-iq-report-unveils-top-identity-threats\/\" target=\"_blank\">https:\/\/www.rsa.com\/news\/press-releases\/soaring-identity-costs-and-stalling-passwordless-progress-in-japan-rsa-id-iq-report-unveils-top-identity-threats\/<\/a>\n <\/li>\n <li>NIST SP 800-63B Revision 4\u300cDigital Identity Guidelines\u300d\uff082025\u5e748\u6708\u78ba\u5b9a\u7248 \u2014 \u6700\u5c0f15\u6587\u5b57\u30fb\u8907\u96d1\u3055\u30eb\u30fc\u30eb\u7981\u6b62\u30fb\u5b9a\u671f\u5909\u66f4\u5ec3\u6b62\uff09\n <a href=\"https:\/\/csrc.nist.gov\/pubs\/sp\/800\/63\/b\/4\/final\" target=\"_blank\">https:\/\/csrc.nist.gov\/pubs\/sp\/800\/63\/b\/4\/final<\/a>\n <\/li>\n <li>Have I Been Pwned\uff08\u30e1\u30fc\u30eb\u30a2\u30c9\u30ec\u30b9\u6f0f\u6d29\u30c1\u30a7\u30c3\u30af \uff0f 2025\u5e74\u306b13\u5104\u4ef6\u8d85\u306e\u65b0\u898f\u30d1\u30b9\u30ef\u30fc\u30c9\u3092\u8ffd\u52a0\uff09\n <a href=\"https:\/\/haveibeenpwned.com\" target=\"_blank\">https:\/\/haveibeenpwned.com<\/a>\n <\/li>\n <li>IPA\u300c\u60c5\u5831\u30bb\u30ad\u30e5\u30ea\u30c6\u30a310\u5927\u8105\u5a01 2025\u300d\n <a href=\"https:\/\/www.ipa.go.jp\/security\/10threats\/2025.html\" target=\"_blank\">https:\/\/www.ipa.go.jp\/security\/10threats\/2025.html<\/a>\n <\/li>\n <\/ul>\n\n <hr style=\"border:none; border-top:1px solid #E2E8F0; margin:2.5em 0;\"\/>\n\n<p class=\"note-text\">\n\u203b2026\u5e744\u670815\u65e5\u6642\u70b9\u306e\u60c5\u5831\u3067\u3059\u3002<br\/>\u6700\u65b0\u60c5\u5831\u306f\u5404\u516c\u5f0f\u30b5\u30a4\u30c8\u3067\u78ba\u8a8d\u3057\u3066\u304f\u3060\u3055\u3044\u3002\n<\/p>\n\n<hr style=\"border: none; border-top: 1px solid #E5E7EB; margin: 3em 0;\"\/>\n\n<p>\u6700\u5f8c\u307e\u3067\u304a\u8aad\u307f\u3044\u305f\u3060\u304d\u3001\u3042\u308a\u304c\u3068\u3046\u3054\u3056\u3044\u307e\u3057\u305f\u3002<\/p>\n\n<p>\n\u5f0a\u793e\u306e\u793e\u540d\u3068\u306a\u3063\u3066\u3044\u308b\u300c\u30ec\u30b8\u30ea\u30a8\u30f3\u30b9\u300d\u306f\u3001<br\/>\n\u300c\u56de\u5fa9\u529b\u300d\u3084\u300c\u5f3e\u6027\u300d\u3092\u610f\u5473\u3059\u308b\u82f1\u5358\u8a9e\u3067\u3059\u3002\n<\/p>\n\n<p>\n\u3064\u307e\u308a\u3001\u74b0\u5883\u306e\u5909\u5316\u3084\u7a81\u767a\u7684\u306a\u4e8b\u8c61\u306b\u5bfe\u3057\u3066<br\/>\n\u3057\u306a\u3084\u304b\u306b\u7c98\u308a\u5f37\u304f\u5bfe\u5fdc\u3057\u3066\u3044\u304f<br\/>\n\u7acb\u3061\u4f4d\u7f6e\u3092\u610f\u5473\u3057\u3066\u3044\u307e\u3059\u3002\n<\/p>\n\n<p>\n\u76ee\u307e\u3050\u308b\u3057\u304f\u5909\u5316\u3059\u308b\u6642\u6d41\u306e\u4e2d\u3067\u3001<br\/>\n\u305d\u308c\u3092\u898b\u6975\u3081\u3064\u3064\u6d41\u3055\u308c\u306a\u3044\u89e3\u6c7a\u7b56\u3092\u63d0\u6848\u81f4\u3057\u307e\u3059\u3002\n<\/p>\n\n<p style=\"font-size: 0.9em; margin-top: 2em;\">\n****************************<br\/>\n\u30b5\u30a4\u30d0\u30fc\u30ec\u30b8\u30ea\u30a8\u30f3\u30b9\u682a\u5f0f\u4f1a\u793e<br\/>\n\u65e5\u672c\u30ec\u30b8\u30ea\u30a8\u30f3\u30b9\u682a\u5f0f\u4f1a\u793e<br\/>\n\u3012103-0026<br\/>\n\u6771\u4eac\u90fd\u4e2d\u592e\u533a\u65e5\u672c\u6a4b\u515c\u753a17\u756a1\u53f7<br\/>\n\u65e5\u672c\u6a4b\u30ed\u30a4\u30e4\u30eb\u30d7\u30e9\u30b6706<br\/>\nTel 03-6823-8902<br\/>\nE-mail: <a href=\"\/cdn-cgi\/l\/email-protection\" class=\"__cf_email__\" data-cfemail=\"aec7c0c8c1eec4cfdecfc083dccbddc7c2c7cbc0cdcb80cdc180c4de\">[email protected]<\/a><br\/>\nhttps:\/\/japan-resilience.co.jp\/cyber<br\/>\n****************************\n<\/p>\n\n<\/article>\n<\/div>\n<script data-cfasync=\"false\" src=\"\/cdn-cgi\/scripts\/5c5dd728\/cloudflare-static\/email-decode.min.js\"><\/script><\/body>\n<\/html>\n","protected":false},"excerpt":{"rendered":"<p>\u30d1\u30b9\u30ef\u30fc\u30c9\u3068MFA\u3067\u5b88\u308b \u2015 \u8a8d\u8a3c\u5f37\u5316\u306e\u5b9f\u8df5\u30ac\u30a4\u30c9\uff5c\u793e\u4f1a\u4eba1\u5e74\u76ee\u306e\u30b5\u30a4\u30d0\u30fc\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u57fa\u672c \u7b2c3\u56de \u30b5\u30a4\u30d0\u30fc\u30ec\u30b8\u30ea\u30a8\u30f3\u30b9\u682a\u5f0f\u4f1a\u793e \u30e1\u30fc\u30eb\u30de\u30ac\u30b8\u30f3 \uff0f 2026\u5e744\u6708\u53f7 \u7b2c3\u56de \u30d1\u30b9\u30ef\u30fc\u30c9\u3068MFA\u3067\u5b88\u308b\u2015 \u8a8d\u8a3c\u5f37\u5316\u306e\u5b9f\u8df5\u30ac […]<\/p>\n","protected":false},"author":8,"featured_media":2605,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"om_disable_all_campaigns":false,"_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"_uf_show_specific_survey":0,"_uf_disable_surveys":false,"_jetpack_memberships_contains_paid_content":false,"vkexunit_cta_each_option":"","footnotes":""},"categories":[8],"tags":[],"class_list":["post-3674","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-information"],"jetpack_featured_media_url":"https:\/\/japan-resilience.co.jp\/cyber\/wp-content\/uploads\/2024\/09\/d05706d3e2e4253a4c22ba1114d027b1.png","jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/japan-resilience.co.jp\/cyber\/wp-json\/wp\/v2\/posts\/3674","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/japan-resilience.co.jp\/cyber\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/japan-resilience.co.jp\/cyber\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/japan-resilience.co.jp\/cyber\/wp-json\/wp\/v2\/users\/8"}],"replies":[{"embeddable":true,"href":"https:\/\/japan-resilience.co.jp\/cyber\/wp-json\/wp\/v2\/comments?post=3674"}],"version-history":[{"count":8,"href":"https:\/\/japan-resilience.co.jp\/cyber\/wp-json\/wp\/v2\/posts\/3674\/revisions"}],"predecessor-version":[{"id":3683,"href":"https:\/\/japan-resilience.co.jp\/cyber\/wp-json\/wp\/v2\/posts\/3674\/revisions\/3683"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/japan-resilience.co.jp\/cyber\/wp-json\/wp\/v2\/media\/2605"}],"wp:attachment":[{"href":"https:\/\/japan-resilience.co.jp\/cyber\/wp-json\/wp\/v2\/media?parent=3674"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/japan-resilience.co.jp\/cyber\/wp-json\/wp\/v2\/categories?post=3674"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/japan-resilience.co.jp\/cyber\/wp-json\/wp\/v2\/tags?post=3674"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}

{"id":3674,"date":"2026-04-15T13:34:27","date_gmt":"2026-04-15T04:34:27","guid":{"rendered":"https:\/\/japan-resilience.co.jp\/cyber\/?p=3674"},"modified":"2026-04-15T14:24:35","modified_gmt":"2026-04-15T05:24:35","slug":"newsletter-cybersecurity-mfa-password-guide","status":"publish","type":"post","link":"https:\/\/japan-resilience.co.jp\/cyber\/2026\/04\/15\/newsletter-cybersecurity-mfa-password-guide\/","title":{"rendered":"\u30d1\u30b9\u30ef\u30fc\u30c9\u3068MFA\u3067\u5b88\u308b \u2015 \u8a8d\u8a3c\u5f37\u5316\u306e\u5b9f\u8df5\u30ac\u30a4\u30c9\uff5c\u793e\u4f1a\u4eba1\u5e74\u76ee\u306e\u30b5\u30a4\u30d0\u30fc\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u57fa\u672c \u7b2c3\u56de"},"content":{"rendered":"\n\n\n\n\n\n\u30d1\u30b9\u30ef\u30fc\u30c9\u3068MFA\u3067\u5b88\u308b \u2015 \u8a8d\u8a3c\u5f37\u5316\u306e\u5b9f\u8df5\u30ac\u30a4\u30c9\uff5c\u793e\u4f1a\u4eba1\u5e74\u76ee\u306e\u30b5\u30a4\u30d0\u30fc\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u57fa\u672c \u7b2c3\u56de<\/title>\n<link 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margin: 2em 0; border-radius: 4px;\n}\n.warning-box {\n background: #FEF3C7; border-left: 5px solid #F59E0B;\n padding: 20px; margin: 2em 0; border-radius: 4px;\n}\n.success-box {\n background: #ECFDF5; border-left: 5px solid #059669;\n padding: 20px; margin: 2em 0; border-radius: 4px;\n}\n.note-text {\n font-size: 0.9em; color: #666;\n text-align: right; margin-top: 1em;\n}\n.intro-section {\n background: #F0FDF4; padding: 20px;\n margin: 2em 0; border-radius: 8px;\n border: 1px solid #D1FAE5;\n}\n\n\/* ==============================\n \u30b7\u30ea\u30fc\u30ba\u30a4\u30f3\u30c7\u30c3\u30af\u30b9\uff08\u30b0\u30ea\u30fc\u30f3\u7cfb\uff09\n ============================== *\/\n.series-index {\n background: linear-gradient(135deg, #064E3B 0%, #065F46 60%, #059669 100%);\n border-radius: 10px;\n padding: 24px 28px;\n margin: 1.5em 0 2em 0;\n color: #fff;\n}\n.series-index-header {\n display: flex; align-items: center;\n gap: 10px; margin-bottom: 10px;\n}\n.series-month-badge {\n background: #FCD34D; color: #064E3B;\n font-size: 0.75rem; font-weight: 900;\n padding: 3px 10px; border-radius: 20px;\n letter-spacing: 0.05em;\n}\n.series-title-label {\n font-size: 0.78rem; color: #A7F3D0;\n font-weight: 500; letter-spacing: 0.08em;\n}\n.series-index-main-title {\n font-size: 1.25rem; font-weight: 900;\n color: #ffffff; margin-bottom: 16px;\n letter-spacing: 0.02em;\n border-bottom: 1px solid rgba(255,255,255,0.2);\n padding-bottom: 12px;\n}\n.series-index-list {\n list-style: none; margin: 0; padding: 0;\n display: flex; flex-direction: column; gap: 8px;\n}\n.series-index-item {\n display: flex; align-items: baseline; gap: 10px;\n padding: 8px 12px; border-radius: 6px;\n font-size: 0.9rem; color: #A7F3D0;\n border: 1px solid transparent;\n}\n.series-index-item.done {\n color: #6EE7B7;\n transition: background 0.2s ease;\n}\n.series-index-item.done:hover {\n background: rgba(255,255,255,0.08);\n border-color: rgba(255,255,255,0.2);\n cursor: pointer;\n}\n.series-index-item.current {\n background: rgba(255,255,255,0.12);\n border-color: rgba(255,255,255,0.25);\n color: #ffffff;\n}\n.series-index-item.upcoming {\n color: #6EE7B7; opacity: 0.65;\n}\n.ep-link {\n display: flex; align-items: baseline;\n gap: 10px; width: 100%;\n color: inherit; text-decoration: none;\n}\n.ep-link:hover .ep-title {\n text-decoration: underline;\n text-underline-offset: 3px;\n}\n.ep-num {\n font-size: 0.72rem; font-weight: 700;\n background: rgba(255,255,255,0.15);\n color: #D1FAE5; padding: 2px 8px;\n border-radius: 20px; white-space: nowrap;\n flex-shrink: 0;\n}\n.series-index-item.done .ep-num {\n background: rgba(255,255,255,0.1);\n color: #6EE7B7;\n}\n.series-index-item.current .ep-num {\n background: #FCD34D; color: #064E3B;\n}\n.ep-title { flex: 1; line-height: 1.5; }\n.ep-badge-done {\n font-size: 0.7rem; font-weight: 700;\n background: rgba(255,255,255,0.15);\n color: #6EE7B7; padding: 2px 8px;\n border-radius: 20px; white-space: nowrap;\n flex-shrink: 0;\n}\n.ep-badge-now {\n font-size: 0.7rem; font-weight: 700;\n background: #FCD34D; color: #064E3B;\n padding: 2px 8px; border-radius: 20px;\n white-space: nowrap; flex-shrink: 0;\n animation: pulse-badge 2s ease-in-out infinite;\n}\n.ep-badge-next {\n font-size: 0.7rem; font-weight: 700;\n background: rgba(255,255,255,0.1);\n color: #A7F3D0; padding: 2px 8px;\n border-radius: 20px; white-space: nowrap;\n flex-shrink: 0;\n}\n@keyframes pulse-badge {\n 0%, 100% { opacity: 1; }\n 50% { opacity: 0.6; }\n}\n\n\/* ==============================\n \u7d71\u8a08\u30ab\u30fc\u30c9\uff08\u30b0\u30ea\u30fc\u30f3\u7cfb\uff09\n ============================== *\/\n.stat-row { display: flex; gap: 16px; flex-wrap: wrap; margin: 2em 0; }\n.stat-card {\n flex: 1 1 160px; background: #ECFDF5;\n border: 1px solid #A7F3D0; border-radius: 8px;\n padding: 18px 16px; text-align: center;\n}\n.stat-card .num {\n font-size: 2.0rem; font-weight: 900;\n color: #065F46; line-height: 1.1;\n}\n.stat-card .unit { font-size: 0.8rem; color: #059669; margin-top: 4px; }\n.stat-card .label { font-size: 0.78rem; color: #475569; margin-top: 6px; }\n\n\/* ==============================\n \u4e8b\u4f8b\u30ab\u30fc\u30c9\n ============================== *\/\n.incident-card {\n border: 1px solid #E2E8F0;\n border-radius: 8px;\n padding: 20px 24px;\n margin: 1.2em 0;\n background: #fff;\n position: relative;\n overflow: hidden;\n}\n.incident-card::before {\n content: \"\";\n position: absolute;\n left: 0; top: 0; bottom: 0;\n width: 5px;\n background: #059669;\n}\n.incident-card.red::before { background: #DC2626; }\n.incident-card.orange::before { background: #F59E0B; }\n.incident-card.yellow::before { background: #EAB308; }\n.incident-header {\n display: flex;\n align-items: flex-start;\n justify-content: space-between;\n flex-wrap: wrap;\n gap: 8px;\n margin-bottom: 10px;\n}\n.incident-year {\n font-size: 0.75rem; font-weight: 700;\n color: #059669; background: #ECFDF5;\n padding: 2px 10px; border-radius: 20px;\n white-space: nowrap;\n}\n.incident-card.red .incident-year { color: #DC2626; background: #FEF2F2; }\n.incident-card.orange .incident-year { color: #D97706; background: #FEF3C7; }\n.incident-title {\n font-size: 1.05rem; font-weight: 700;\n color: #1e293b; margin: 0 0 8px 0;\n line-height: 1.4;\n}\n.incident-body { font-size: 0.9rem; color: #475569; line-height: 1.7; }\n\n\/* ==============================\n MFA\u30ec\u30d9\u30eb\u6bd4\u8f03\n ============================== *\/\n.mfa-table {\n width: 100%; border-collapse: collapse;\n margin: 1.5em 0; font-size: 0.88rem;\n}\n.mfa-table th {\n background: #065F46; color: #fff;\n padding: 10px 14px; text-align: left;\n font-weight: 700;\n}\n.mfa-table td {\n padding: 10px 14px;\n border-bottom: 1px solid #E2E8F0;\n vertical-align: top;\n color: #475569;\n}\n.mfa-table tr:nth-child(even) td { background: #F8FAFC; }\n.mfa-table .level-high { color: #059669; font-weight: 700; }\n.mfa-table .level-mid { color: #D97706; font-weight: 700; }\n.mfa-table .level-low { color: #DC2626; font-weight: 700; }\n\n\/* ==============================\n \u30d1\u30b9\u30ef\u30fc\u30c9\u30de\u30cd\u30fc\u30b8\u30e3\u30fc\u6bd4\u8f03\n ============================== *\/\n.pm-card {\n border: 1px solid #E2E8F0; border-radius: 8px;\n padding: 18px 20px; margin: 1em 0;\n background: #fff; position: relative; overflow: hidden;\n}\n.pm-card::before {\n content: \"\"; position: absolute;\n left: 0; top: 0; bottom: 0; width: 5px;\n background: #10B981;\n}\n.pm-name {\n font-size: 1.05rem; font-weight: 700; color: #065F46;\n margin: 0 0 6px 0;\n}\n.pm-meta { font-size: 0.82rem; color: #9CA3AF; margin-bottom: 10px; }\n.pm-desc { font-size: 0.9rem; color: #475569; line-height: 1.7; margin: 0; }\n\n\/* ==============================\n \u30c1\u30a7\u30c3\u30af\u30ea\u30b9\u30c8\n ============================== *\/\n.checklist-section { margin: 1.5em 0; }\n.checklist-category {\n font-size: 1rem; font-weight: 700;\n color: #065F46;\n margin: 1.2em 0 0.6em 0;\n padding-bottom: 4px;\n border-bottom: 2px solid #A7F3D0;\n}\n.checklist-items { list-style: none; margin: 0; padding: 0; }\n.checklist-items li {\n display: flex; align-items: flex-start;\n gap: 10px; padding: 7px 0;\n border-bottom: 1px dotted #D1FAE5;\n font-size: 0.9rem; color: #374151;\n line-height: 1.5;\n}\n.checklist-items li:last-child { border-bottom: none; }\n.check-icon {\n min-width: 20px; height: 20px;\n border: 2px solid #059669; border-radius: 4px;\n background: #fff; flex-shrink: 0;\n margin-top: 2px;\n}\n\n\/* ==============================\n \u6b21\u56de\u4e88\u544a\n ============================== *\/\n.next-issue-box {\n background: linear-gradient(135deg, #064E3B 0%, #065F46 100%);\n border-radius: 10px; padding: 24px 28px;\n margin: 3em 0 2em 0; color: #fff;\n}\n.next-issue-box .next-label {\n font-size: 0.75rem; font-weight: 700;\n color: #6EE7B7; letter-spacing: 0.1em;\n margin-bottom: 8px;\n}\n.next-issue-box h3 {\n font-size: 1.3rem; font-weight: 900;\n color: #fff; margin: 0 0 10px 0;\n border-left: none; padding-left: 0;\n}\n.next-issue-box p { font-size: 0.9rem; color: #A7F3D0; margin: 0; }\n\n\/* ==============================\n \u53c2\u8003\u60c5\u5831\u30fb\u9023\u7d61\u5148\n ============================== *\/\n.ref-list { list-style: none; margin: 0; padding: 0; }\n.ref-list li {\n padding: 6px 0;\n border-bottom: 1px solid #E2E8F0;\n font-size: 0.88rem;\n}\n.ref-list li:last-child { border-bottom: none; }\n.ref-list a { color: #059669; word-break: break-all; }\n.ref-list a:hover { text-decoration: underline; }\n\n.contact-block {\n background: #F0FDF4; border: 1px solid #D1FAE5;\n border-radius: 8px; padding: 20px 24px;\n margin: 2em 0; font-size: 0.88rem;\n color: #374151; line-height: 2.0;\n}\n.contact-block strong {\n display: block; font-size: 1rem;\n color: #065F46; margin-bottom: 6px;\n}\n\n@media (max-width: 600px) {\n .risk-report h1 { font-size: 1.5rem; }\n .risk-report h2 { font-size: 1.3rem; }\n .stat-row { gap: 10px; }\n .stat-card .num { font-size: 1.6rem; }\n .series-index { padding: 18px 16px; }\n}\n<\/style>\n<\/head>\n<body>\n<div class=\"web-container\">\n<div class=\"risk-report\">\n\n <p class=\"note-text\">\u30b5\u30a4\u30d0\u30fc\u30ec\u30b8\u30ea\u30a8\u30f3\u30b9\u682a\u5f0f\u4f1a\u793e \u30e1\u30fc\u30eb\u30de\u30ac\u30b8\u30f3 \uff0f 2026\u5e744\u6708\u53f7 \u7b2c3\u56de<\/p>\n\n <h1>\u30d1\u30b9\u30ef\u30fc\u30c9\u3068MFA\u3067\u5b88\u308b<br>\u2015 \u8a8d\u8a3c\u5f37\u5316\u306e\u5b9f\u8df5\u30ac\u30a4\u30c9<\/h1>\n\n \n <div class=\"series-index\">\n <div class=\"series-index-header\">\n <span class=\"series-month-badge\">2026\u5e744\u6708\u53f7<\/span>\n <span class=\"series-title-label\">\u51684\u56de\u30b7\u30ea\u30fc\u30ba<\/span>\n <\/div>\n <div class=\"series-index-main-title\">\ud83d\udee1\ufe0f \u793e\u4f1a\u4eba1\u5e74\u76ee\u306e\u30b5\u30a4\u30d0\u30fc\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u57fa\u672c<\/div>\n <ul class=\"series-index-list\">\n <li class=\"series-index-item done\">\n <a class=\"ep-link\" href=\"https:\/\/japan-resilience.co.jp\/cyber\/2026\/04\/01\/newsletter-cybersecurity-newemployee-why-targeted\/\">\n <span class=\"ep-num\">\u7b2c1\u56de<\/span>\n <span class=\"ep-title\">\u653b\u6483\u8005\u306f\u3042\u306a\u305f\u3092\u72d9\u3063\u3066\u3044\u308b \u2015 \u65b0\u5165\u793e\u54e1\u304c\u72d9\u308f\u308c\u308b\u7406\u7531<\/span>\n <span class=\"ep-badge-done\">\u914d\u4fe1\u6e08\u307f<\/span>\n <\/a>\n <\/li>\n <li class=\"series-index-item done\">\n <a class=\"ep-link\" href=\"https:\/\/japan-resilience.co.jp\/cyber\/2026\/04\/08\/newsletter-cybersecurity-phishing-ai-email\/\">\n <span class=\"ep-num\">\u7b2c2\u56de<\/span>\n <span class=\"ep-title\">\u305d\u306e\u30e1\u30fc\u30eb\u3001\u672c\u7269\u3067\u3059\u304b\uff1f \u2015 \u30d5\u30a3\u30c3\u30b7\u30f3\u30b0\u30fb\u751f\u6210AI\u8a50\u6b3a\u306e\u898b\u5206\u3051\u65b9<\/span>\n <span class=\"ep-badge-done\">\u914d\u4fe1\u6e08\u307f<\/span>\n <\/a>\n <\/li>\n <li class=\"series-index-item current\">\n <span class=\"ep-num\">\u7b2c3\u56de<\/span>\n <span class=\"ep-title\">\u30d1\u30b9\u30ef\u30fc\u30c9\u3068MFA\u3067\u5b88\u308b \u2015 \u8a8d\u8a3c\u5f37\u5316\u306e\u5b9f\u8df5\u30ac\u30a4\u30c9<\/span>\n <span class=\"ep-badge-now\">\u4eca\u56de<\/span>\n <\/li>\n <li class=\"series-index-item upcoming\">\n <span class=\"ep-num\">\u7b2c4\u56de<\/span>\n <span class=\"ep-title\">SNS\u3067\u60c5\u5831\u3092\u5b88\u308b \u2015 \u30d7\u30e9\u30a4\u30d0\u30b7\u30fc\u7ba1\u7406\u3068\u904e\u5270\u5171\u6709\u30ea\u30b9\u30af<\/span>\n <span class=\"ep-badge-next\">4\/22\u914d\u4fe1\u4e88\u5b9a<\/span>\n <\/li>\n <\/ul>\n <\/div>\n\n \n <div class=\"intro-section\">\n <p>\u300c\u30d1\u30b9\u30ef\u30fc\u30c9\u306f\u5b9a\u671f\u7684\u306b\u5909\u3048\u307e\u3057\u3087\u3046\u300d\u2015\u2015\u305d\u3046\u8a00\u308f\u308c\u3066\u304d\u305f\u6642\u4ee3\u306f\u7d42\u308f\u308a\u307e\u3057\u305f\u3002\u73fe\u4ee3\u306e\u653b\u6483\u8005\u306f\u3001\u3042\u306a\u305f\u306e\u30d1\u30b9\u30ef\u30fc\u30c9\u3092<strong>\u6570\u79d2\u3067\u8a66\u3057\u3001\u6570\u5206\u3067\u7a81\u7834\u3057\u307e\u3059\u3002<\/strong>\u5927\u5207\u306a\u306e\u306f\u300c\u8907\u96d1\u3055\u00d7\u7ba1\u7406\u30c4\u30fc\u30eb\u00d7\u591a\u8981\u7d20\u8a8d\u8a3c\uff08MFA\uff09\u300d\u306e\u7d44\u307f\u5408\u308f\u305b\u3067\u3059\u3002<\/p>\n <p>Verizon DBIR 2025\u306b\u3088\u308c\u3070\u3001\u4fb5\u5bb3\u306e\u521d\u671f\u30a2\u30af\u30bb\u30b9\u7d4c\u8def\u306e<strong>22%\u304c\u8a8d\u8a3c\u60c5\u5831\u306e\u76d7\u7528<\/strong>\u3067\u3042\u308a\u3001Web\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u653b\u6483\u306b\u9650\u5b9a\u3059\u308b\u3068<strong>88%<\/strong>\u304c\u76d7\u307e\u308c\u305f\u8a8d\u8a3c\u60c5\u5831\u3092\u4f7f\u7528\u3057\u3066\u3044\u307e\u3059\u3002\u4eca\u53f7\u3067\u306f\u3001\u65b0\u5165\u793e\u54e1\u3067\u3082\u4eca\u65e5\u304b\u3089\u5b9f\u8df5\u3067\u304d\u308b\u8a8d\u8a3c\u5f37\u5316\u306e\u5177\u4f53\u7684\u30b9\u30c6\u30c3\u30d7\u3092\u304a\u5c4a\u3051\u3057\u307e\u3059\u3002<\/p>\n <\/div>\n\n \n <div class=\"stat-row\">\n <div class=\"stat-card\">\n <div class=\"num\">99.99%<\/div>\n <div class=\"unit\">\u4ee5\u4e0a\u306eMFA\u6709\u52b9\u30a2\u30ab\u30a6\u30f3\u30c8\u304c\u5b89\u5168\u3092\u7dad\u6301<\/div>\n <div class=\"label\">Microsoft Research 2023\uff08\u65e7\u6765\u7d71\u8a0899.9%\u304b\u3089\u66f4\u65b0\uff09<\/div>\n <\/div>\n <div class=\"stat-card\">\n <div class=\"num\">22%<\/div>\n <div class=\"unit\">\u306e\u4fb5\u5bb3\u304c\u8a8d\u8a3c\u60c5\u5831\u76d7\u7528\u3092\u521d\u671f\u7d4c\u8def\u306b\u4f7f\u7528<\/div>\n <div class=\"label\">Verizon DBIR 2025\uff08Web\u30a2\u30d7\u30ea\u653b\u6483\u9650\u5b9a\u3067\u306f88%\uff09<\/div>\n <\/div>\n <div class=\"stat-card\">\n <div class=\"num\">\u6570\u5341\u5104\u4ef6<\/div>\n <div class=\"unit\">\u898f\u6a21\u306e\u6d41\u51fa\u30d1\u30b9\u30ef\u30fc\u30c9\u304c\u6d41\u901a\u4e2d<\/div>\n <div class=\"label\">Have I Been Pwned\uff082025\u5e74\u306b13\u5104\u4ef6\u8d85\u3092\u65b0\u898f\u8ffd\u52a0\uff09<\/div>\n <\/div>\n <div class=\"stat-card\">\n <div class=\"num\">69%<\/div>\n <div class=\"unit\">\u306e\u7d44\u7e54\u304cID\u4fb5\u5bb3\u3092\u7d4c\u9a13\uff08\u524d\u5e74\u6bd4\uff0b27pt\uff09<\/div>\n <div class=\"label\">RSA ID IQ Report 2026\uff08\u30b0\u30ed\u30fc\u30d0\u30eb\u8abf\u67fb\uff09<\/div>\n <\/div>\n <\/div>\n\n \n <h2>\u7b2c1\u7ae0\uff1a\u306a\u305c\u30d1\u30b9\u30ef\u30fc\u30c9\u3060\u3051\u3067\u306f\u8db3\u308a\u306a\u3044\u306e\u304b<\/h2>\n\n <p>\u591a\u304f\u306e\u4eba\u304c\u300c\u81ea\u5206\u306e\u30d1\u30b9\u30ef\u30fc\u30c9\u306f\u5b89\u5168\u3060\u300d\u3068\u601d\u3063\u3066\u3044\u307e\u3059\u3002\u3057\u304b\u3057\u73fe\u5b9f\u306b\u306f\u3001\u3042\u306a\u305f\u304c\u4f7f\u3063\u3066\u3044\u308b\u30b5\u30fc\u30d3\u30b9\u306e\u4e00\u3064\u304c\u904e\u53bb\u306b\u6f0f\u6d29\u3057\u3066\u3044\u308c\u3070\u3001\u305d\u306e\u30d1\u30b9\u30ef\u30fc\u30c9\u306f\u3059\u3067\u306b\u653b\u6483\u8005\u306e\u30ea\u30b9\u30c8\u306b\u8f09\u3063\u3066\u3044\u307e\u3059\u3002<\/p>\n\n <div class=\"alert-box\">\n <strong>\u26a0\ufe0f \u300c\u4f7f\u3044\u56de\u3057\u300d\u304c\u6700\u5927\u306e\u8105\u5a01<\/strong>\n <p style=\"margin:0.5em 0 0;\">\u540c\u3058\u30d1\u30b9\u30ef\u30fc\u30c9\u3092\u8907\u6570\u30b5\u30fc\u30d3\u30b9\u3067\u4f7f\u3044\u56de\u3059\u3068\u3001\u4e00\u7b87\u6240\u304c\u6f0f\u6d29\u3057\u305f\u77ac\u9593\u306b\u5168\u30a2\u30ab\u30a6\u30f3\u30c8\u304c\u5371\u967a\u306b\u3055\u3089\u3055\u308c\u307e\u3059\uff08\u30af\u30ec\u30c7\u30f3\u30b7\u30e3\u30eb\u30b9\u30bf\u30c3\u30d5\u30a3\u30f3\u30b0\u653b\u6483\uff09\u3002\u653b\u6483\u8005\u306f\u30c4\u30fc\u30eb\u3092\u4f7f\u3063\u3066<strong>\u6bce\u79d2\u6570\u5343\u56de<\/strong>\u306e\u30ed\u30b0\u30a4\u30f3\u8a66\u884c\u3092\u81ea\u52d5\u5316\u3057\u307e\u3059\u3002<\/p>\n <\/div>\n\n <h3>\u30d1\u30b9\u30ef\u30fc\u30c9\u304c\u7834\u3089\u308c\u308b3\u3064\u306e\u4e3b\u306a\u65b9\u6cd5<\/h3>\n\n <div class=\"incident-card red\">\n <div class=\"incident-header\">\n <p class=\"incident-title\">\u2460 \u30af\u30ec\u30c7\u30f3\u30b7\u30e3\u30eb\u30b9\u30bf\u30c3\u30d5\u30a3\u30f3\u30b0<\/p>\n <span class=\"incident-year\">\u6700\u591a\u653b\u6483\u624b\u6cd5<\/span>\n <\/div>\n <div class=\"incident-body\">\n \u904e\u53bb\u306e\u6f0f\u6d29\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\uff08\u6570\u5341\u5104\u4ef6\u898f\u6a21\u3001HIBP\u306f2025\u5e74\u306b13\u5104\u4ef6\u8d85\u3092\u65b0\u898f\u8ffd\u52a0\uff09\u306b\u8f09\u3063\u3066\u3044\u308bID\u30fb\u30d1\u30b9\u30ef\u30fc\u30c9\u3092\u81ea\u52d5\u3067\u8a66\u3057\u7d9a\u3051\u308b\u653b\u6483\u3002\u4f7f\u3044\u56de\u3057\u3092\u3057\u3066\u3044\u308b\u3068\u3001\u898b\u77e5\u3089\u306c\u30b5\u30fc\u30d3\u30b9\u306e\u6f0f\u6d29\u304c\u3042\u306a\u305f\u306e\u30a2\u30ab\u30a6\u30f3\u30c8\u3092\u5371\u967a\u306b\u3055\u3089\u3057\u307e\u3059\u3002Verizon DBIR 2025\u3067\u306f\u3001\u8a8d\u8a3c\u8a66\u884c\u306e\u4e2d\u592e\u502419%\u304c\u30af\u30ec\u30c7\u30f3\u30b7\u30e3\u30eb\u30b9\u30bf\u30c3\u30d5\u30a3\u30f3\u30b0\u3067\u3042\u308b\u3068\u5831\u544a\u3055\u308c\u3066\u3044\u307e\u3059\u3002\n <\/div>\n <\/div>\n\n <div class=\"incident-card orange\">\n <div class=\"incident-header\">\n <p class=\"incident-title\">\u2461 \u30d5\u30a3\u30c3\u30b7\u30f3\u30b0\u306b\u3088\u308b\u8a8d\u8a3c\u60c5\u5831\u306e\u8a50\u53d6<\/p>\n <span class=\"incident-year\">\u9ad8\u5ea6\u5316\u304c\u9032\u3080<\/span>\n <\/div>\n <div class=\"incident-body\">\n \u7b2c2\u56de\u3067\u3082\u89e3\u8aac\u3057\u305f\u507d\u30e1\u30fc\u30eb\u30fb\u507d\u30b5\u30a4\u30c8\u3078\u8a98\u5c0e\u3057\u3001\u672c\u7269\u3068\u898b\u5206\u3051\u304c\u3064\u304b\u306a\u3044\u30ed\u30b0\u30a4\u30f3\u753b\u9762\u3067ID\u30fb\u30d1\u30b9\u30ef\u30fc\u30c9\u3092\u5165\u529b\u3055\u305b\u308b\u624b\u6cd5\u3002AI\u751f\u6210\u306e\u5de7\u5999\u306a\u6587\u7ae0\u306b\u3088\u308a\u3001\u5f93\u6765\u306e\u300c\u602a\u3057\u3044\u65e5\u672c\u8a9e\u300d\u3067\u306e\u8b58\u5225\u304c\u901a\u7528\u3057\u306a\u304f\u306a\u3063\u3066\u3044\u307e\u3059\u3002\n <\/div>\n <\/div>\n\n <div class=\"incident-card\">\n <div class=\"incident-header\">\n <p class=\"incident-title\">\u2462 \u30d6\u30eb\u30fc\u30c8\u30d5\u30a9\u30fc\u30b9\u30fb\u8f9e\u66f8\u653b\u6483<\/p>\n <span class=\"incident-year\">\u5358\u7d14\u3060\u304c\u6709\u52b9<\/span>\n <\/div>\n <div class=\"incident-body\">\n \u300cpassword123\u300d\u300c\u793e\u540d+\u751f\u5e74\u6708\u65e5\u300d\u306a\u3069\u3001\u3088\u304f\u4f7f\u308f\u308c\u308b\u30d1\u30bf\u30fc\u30f3\u3092\u7dcf\u5f53\u305f\u308a\u3067\u8a66\u3059\u653b\u6483\u3002\u30af\u30e9\u30a6\u30c9\u306e\u8a08\u7b97\u30ea\u30bd\u30fc\u30b9\u3092\u4f7f\u3048\u3070\u30018\u6587\u5b57\u306e\u5358\u7d14\u306a\u30d1\u30b9\u30ef\u30fc\u30c9\u306f\u6570\u6642\u9593\u3067\u89e3\u8aad\u3055\u308c\u307e\u3059\u3002\u9577\u304f\u30e9\u30f3\u30c0\u30e0\u306a\u30d1\u30b9\u30ef\u30fc\u30c9\u304c\u57fa\u672c\u3067\u3059\u3002\n <\/div>\n <\/div>\n\n \n <h2>\u7b2c2\u7ae0\uff1aMFA\uff08\u591a\u8981\u7d20\u8a8d\u8a3c\uff09\u3067\u300c\u9375\u3092\u4e8c\u91cd\u306b\u304b\u3051\u308b\u300d<\/h2>\n\n <p>MFA\uff08Multi-Factor Authentication\uff09\u3068\u306f\u3001\u30d1\u30b9\u30ef\u30fc\u30c9\u306b\u52a0\u3048\u3066<strong>\u3082\u3046\u4e00\u3064\u306e\u78ba\u8a8d\u624b\u6bb5<\/strong>\u3092\u8981\u6c42\u3059\u308b\u8a8d\u8a3c\u65b9\u5f0f\u3067\u3059\u3002Microsoft\u306e\u6700\u65b0\u7814\u7a76\uff082023\u5e74\uff09\u306b\u3088\u308c\u3070\u3001MFA\u6709\u52b9\u30a2\u30ab\u30a6\u30f3\u30c8\u306e<strong>99.99%\u4ee5\u4e0a<\/strong>\u304c\u8abf\u67fb\u671f\u9593\u4e2d\u306b\u5b89\u5168\u3092\u7dad\u6301\u3057\u3066\u304a\u308a\u3001\u81ea\u52d5\u5316\u653b\u6483\u306b\u5bfe\u3057\u3066\u6975\u3081\u3066\u9ad8\u3044\u9632\u5fa1\u52b9\u679c\u304c\u78ba\u8a8d\u3055\u308c\u3066\u3044\u307e\u3059\u3002<\/p>\n\n <div class=\"info-box\">\n <strong>\ud83d\udd11 \u8a8d\u8a3c\u306e\u300c3\u8981\u7d20\u300d<\/strong>\n <ul style=\"margin-top:0.8em;\">\n <li><strong>\u77e5\u8b58\u8981\u7d20<\/strong>\uff1a\u30d1\u30b9\u30ef\u30fc\u30c9\u30fbPIN\u30b3\u30fc\u30c9\uff08\u3042\u306a\u305f\u304c\u300c\u77e5\u3063\u3066\u3044\u308b\u300d\u3082\u306e\uff09<\/li>\n <li><strong>\u6240\u6301\u8981\u7d20<\/strong>\uff1a\u30b9\u30de\u30fc\u30c8\u30d5\u30a9\u30f3\u30fb\u30cf\u30fc\u30c9\u30a6\u30a7\u30a2\u30ad\u30fc\uff08\u3042\u306a\u305f\u304c\u300c\u6301\u3063\u3066\u3044\u308b\u300d\u3082\u306e\uff09<\/li>\n <li><strong>\u751f\u4f53\u8981\u7d20<\/strong>\uff1a\u6307\u7d0b\u30fb\u9854\u8a8d\u8a3c\uff08\u3042\u306a\u305f\u304c\u300c\u305d\u306e\u3082\u306e\u300d\u3067\u3042\u308b\u3053\u3068\uff09<\/li>\n <\/ul>\n <p style=\"margin-top:0.8em;\">MFA\u306f\u300c\u77e5\u8b58\u300d\uff0b\u300c\u6240\u6301 or \u751f\u4f53\u300d\u306e\u7d44\u307f\u5408\u308f\u305b\u3067\u30011\u8981\u7d20\u304c\u76d7\u307e\u308c\u3066\u3082\u7a81\u7834\u3055\u308c\u307e\u305b\u3093\u3002<\/p>\n <\/div>\n\n <h3>MFA\u306e\u7a2e\u985e\u3068\u5b89\u5168\u30ec\u30d9\u30eb\u6bd4\u8f03<\/h3>\n\n <table class=\"mfa-table\">\n <tr>\n <th>MFA\u65b9\u5f0f<\/th>\n <th>\u5b89\u5168\u30ec\u30d9\u30eb<\/th>\n <th>\u7279\u5fb4<\/th>\n <th>\u304a\u3059\u3059\u3081\u5ea6<\/th>\n <\/tr>\n <tr>\n <td><strong>\u30cf\u30fc\u30c9\u30a6\u30a7\u30a2\u30ad\u30fc<\/strong><br>\uff08YubiKey\u7b49\uff09<\/td>\n <td class=\"level-high\">\u2605\u2605\u2605 \u6700\u9ad8<\/td>\n <td>\u7269\u7406\u30c7\u30d0\u30a4\u30b9\u3067\u306e\u8a8d\u8a3c\u3002\u30d5\u30a3\u30c3\u30b7\u30f3\u30b0\u306b\u5b8c\u5168\u8010\u6027<\/td>\n <td>\u91cd\u8981\u696d\u52d9\u30fb\u7ba1\u7406\u8005\u5411\u3051<\/td>\n <\/tr>\n <tr>\n <td><strong>\u8a8d\u8a3c\u30a2\u30d7\u30ea<\/strong><br>\uff08Google Authenticator\u7b49\uff09<\/td>\n <td class=\"level-high\">\u2605\u2605\u2605 \u9ad8<\/td>\n <td>6\u6841\u306e\u30ef\u30f3\u30bf\u30a4\u30e0\u30b3\u30fc\u30c9\u3092\u751f\u6210\u3002\u30aa\u30d5\u30e9\u30a4\u30f3\u3067\u3082\u52d5\u4f5c<\/td>\n <td>\u2705 \u4e00\u822c\u696d\u52d9\u306b\u6700\u9069<\/td>\n <\/tr>\n <tr>\n <td><strong>\u30d1\u30b9\u30ad\u30fc<\/strong><br>\uff08Face ID\/\u6307\u7d0b\u8a8d\u8a3c\uff09<\/td>\n <td class=\"level-high\">\u2605\u2605\u2605 \u9ad8<\/td>\n <td>\u6b21\u4e16\u4ee3\u6a19\u6e96\u3002\u30d1\u30b9\u30ef\u30fc\u30c9\u4e0d\u8981\u3067\u30d5\u30a3\u30c3\u30b7\u30f3\u30b0\u8010\u6027\u3042\u308a<\/td>\n <td>\u2705 \u4eca\u5f8c\u306e\u4e3b\u6d41<\/td>\n <\/tr>\n <tr>\n <td><strong>\u30d7\u30c3\u30b7\u30e5\u901a\u77e5<\/strong><br>\uff08Microsoft Authenticator\u7b49\uff09<\/td>\n <td class=\"level-mid\">\u2605\u2605 \u4e2d<\/td>\n <td>\u30b9\u30de\u30db\u3078\u306e\u627f\u8a8d\u901a\u77e5\u3002MFA\u75b2\u52b4\u653b\u6483\u306b\u6ce8\u610f\u304c\u5fc5\u8981<\/td>\n <td>\u8a2d\u5b9a\u6b21\u7b2c\u3067\u6709\u52b9<\/td>\n <\/tr>\n <tr>\n <td><strong>SMS\u30fb\u30e1\u30fc\u30ebOTP<\/strong><\/td>\n <td class=\"level-low\">\u2605 \u4f4e<\/td>\n <td>\u624b\u8efd\u3060\u304cSIM\u30b9\u30ef\u30c3\u30d7\u30fb\u508d\u53d7\u30ea\u30b9\u30af\u3042\u308a<\/td>\n <td>\u4ed6\u306e\u65b9\u5f0f\u304c\u306a\u3044\u5834\u5408\u306e\u307f<\/td>\n <\/tr>\n <\/table>\n\n <div class=\"warning-box\">\n <strong>\u26a1 \u300cMFA\u75b2\u52b4\u653b\u6483\u300d\u306b\u6ce8\u610f<\/strong>\n <p style=\"margin:0.5em 0 0;\">\u653b\u6483\u8005\u304c\u5927\u91cf\u306eMFA\u627f\u8a8d\u30ea\u30af\u30a8\u30b9\u30c8\u3092\u9001\u308a\u7d9a\u3051\u3001\u5229\u7528\u8005\u304c\u75b2\u308c\u3066\u300c\u627f\u8a8d\u300d\u3092\u62bc\u3057\u3066\u3057\u307e\u3046\u3053\u3068\u3092\u72d9\u3046\u624b\u6cd5\u304c\u6025\u5897\u3057\u3066\u3044\u307e\u3059\u3002<strong>\u300c\u8eab\u306b\u899a\u3048\u306e\u306a\u3044MFA\u901a\u77e5\u306f\u7d76\u5bfe\u306b\u627f\u8a8d\u3057\u306a\u3044\u3053\u3068\u300d<\/strong>\u304c\u30eb\u30fc\u30eb\u3067\u3059\u3002\u4e0d\u5be9\u306a\u901a\u77e5\u304c\u5c4a\u3044\u305f\u3089\u3001\u3059\u3050\u306bIT\u62c5\u5f53\u8005\u3078\u5831\u544a\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n <\/div>\n\n \n <h2>\u7b2c3\u7ae0\uff1a\u30d1\u30b9\u30ef\u30fc\u30c9\u30de\u30cd\u30fc\u30b8\u30e3\u30fc\u3067\u300c\u899a\u3048\u306a\u3044\u7ba1\u7406\u300d\u3092\u5b9f\u73fe<\/h2>\n\n <p>\u300c\u3059\u3079\u3066\u306e\u30b5\u30fc\u30d3\u30b9\u306b\u7570\u306a\u308b\u9577\u3044\u30d1\u30b9\u30ef\u30fc\u30c9\u3092\u4f7f\u3046\u300d\u306e\u304c\u7406\u60f3\u3067\u3059\u304c\u3001\u4eba\u9593\u306e\u8a18\u61b6\u306b\u306f\u9650\u754c\u304c\u3042\u308a\u307e\u3059\u3002\u305d\u3053\u3067\u6d3b\u8e8d\u3059\u308b\u306e\u304c<strong>\u30d1\u30b9\u30ef\u30fc\u30c9\u30de\u30cd\u30fc\u30b8\u30e3\u30fc<\/strong>\u3067\u3059\u3002\u30de\u30b9\u30bf\u30fc\u30d1\u30b9\u30ef\u30fc\u30c9\u4e00\u3064\u3067\u3001\u3059\u3079\u3066\u306e\u30a2\u30ab\u30a6\u30f3\u30c8\u3092\u5b89\u5168\u306b\u7ba1\u7406\u3067\u304d\u307e\u3059\u3002<\/p>\n\n <div class=\"pm-card\">\n <div class=\"pm-name\">\ud83d\udfe2 Bitwarden\uff08\u30d3\u30c3\u30c8\u30a6\u30a9\u30fc\u30c7\u30f3\uff09<\/div>\n <div class=\"pm-meta\">\u7121\u6599\u30d7\u30e9\u30f3\u3042\u308a \uff0f \u30aa\u30fc\u30d7\u30f3\u30bd\u30fc\u30b9 \uff0f \u5168\u30d7\u30e9\u30c3\u30c8\u30d5\u30a9\u30fc\u30e0\u5bfe\u5fdc<\/div>\n <div class=\"pm-desc\">\u500b\u4eba\u30fb\u30c1\u30fc\u30e0\u3067\u4f7f\u3048\u308b\u30aa\u30fc\u30d7\u30f3\u30bd\u30fc\u30b9\u306e\u30d1\u30b9\u30ef\u30fc\u30c9\u30de\u30cd\u30fc\u30b8\u30e3\u30fc\u3002\u7121\u6599\u3067\u3082\u4e3b\u8981\u6a5f\u80fd\u304c\u4f7f\u3048\u3001\u30bb\u30eb\u30d5\u30db\u30b9\u30c8\u3082\u53ef\u80fd\u3002\u4e2d\u5c0f\u4f01\u696d\u306e\u5165\u9580\u306b\u6700\u9069\u3002<\/div>\n <\/div>\n\n <div class=\"pm-card\">\n <div class=\"pm-name\">\ud83d\udd35 1Password\uff08\u30ef\u30f3\u30d1\u30b9\u30ef\u30fc\u30c9\uff09<\/div>\n <div class=\"pm-meta\">\u6708\u984d\u7d04400\u5186\u301c \uff0f \u30c1\u30fc\u30e0\u6a5f\u80fd\u5145\u5b9f \uff0f \u4f01\u696d\u5411\u3051<\/div>\n <div class=\"pm-desc\">UI\u304c\u6d17\u7df4\u3055\u308c\u3066\u304a\u308a\u4f7f\u3044\u3084\u3059\u3044\u3002\u30c1\u30fc\u30e0\u5411\u3051\u306e\u6a29\u9650\u7ba1\u7406\u30fb\u5171\u6709\u6a5f\u80fd\u304c\u5f37\u529b\u3002\u4f01\u696d\u5c0e\u5165\u306b\u5411\u3044\u3066\u304a\u308a\u3001SSO\u3068\u306e\u9023\u643a\u3082\u5bb9\u6613\u3002<\/div>\n <\/div>\n\n <div class=\"pm-card\">\n <div class=\"pm-name\">\ud83d\udfe1 Microsoft Authenticator \uff0b Edge \u30d1\u30b9\u30ef\u30fc\u30c9\u7ba1\u7406<\/div>\n <div class=\"pm-meta\">Microsoft 365\u30e6\u30fc\u30b6\u30fc\u306f\u8ffd\u52a0\u8cbb\u7528\u306a\u3057<\/div>\n <div class=\"pm-desc\">Microsoft 365\u3092\u5229\u7528\u4e2d\u306e\u4f01\u696d\u306a\u3089\u305d\u306e\u307e\u307e\u6d3b\u7528\u53ef\u80fd\u3002Entra ID\uff08\u65e7Azure AD\uff09\u3068\u9023\u643a\u3057\u3066\u30d1\u30b9\u30ef\u30fc\u30c9\u30ec\u30b9\u8a8d\u8a3c\u3078\u306e\u79fb\u884c\u304c\u30b9\u30e0\u30fc\u30ba\u3002<\/div>\n <\/div>\n\n <div class=\"info-box\">\n <strong>\ud83d\udccc NIST SP 800-63B \u304c\u63a8\u5968\u3059\u308b\u300c\u65b0\u3057\u3044\u30d1\u30b9\u30ef\u30fc\u30c9\u30eb\u30fc\u30eb\u300d<\/strong>\n <ul style=\"margin-top:0.8em;\">\n <li>\u2705 <strong>\u9577\u3055\u3092\u91cd\u8996<\/strong>\uff1a\u6700\u4f4e<strong>15\u6587\u5b57\u4ee5\u4e0a<\/strong>\uff08Rev.4\u30678\u6587\u5b57\u219215\u6587\u5b57\u306b\u5f15\u304d\u4e0a\u3052\uff09<\/li>\n <li>\u2705 <strong>\u5b9a\u671f\u5909\u66f4\u306f\u4e0d\u8981<\/strong>\uff1a\u6f0f\u6d29\u304c\u5224\u660e\u3057\u305f\u5834\u5408\u306e\u307f\u5909\u66f4\u3059\u308c\u3070\u3088\u3044<\/li>\n <li>\u2705 <strong>\u5168\u30b5\u30fc\u30d3\u30b9\u3067\u7570\u306a\u308b\u30d1\u30b9\u30ef\u30fc\u30c9<\/strong>\u3092\u4f7f\u7528\u3059\u308b<\/li>\n <li>\u274c <strong>\u8907\u96d1\u3055\u30eb\u30fc\u30eb\uff08\u8a18\u53f7\u5fc5\u9808\u7b49\uff09\u306f\u7981\u6b62<\/strong>\uff1aRev.4\u3067\u306f\u300cshall not\uff08\u7981\u6b62\uff09\u300d\u306b\u5f37\u5316\u6e08\u307f<\/li>\n <\/ul>\n <\/div>\n\n \n <h2>\u7b2c4\u7ae0\uff1a\u4eca\u3059\u3050\u5b9f\u8df5\u3059\u3079\u304d3\u3064\u306e\u30b9\u30c6\u30c3\u30d7<\/h2>\n\n <div class=\"success-box\">\n <h3 style=\"margin-top:0; border:none; padding:0; color:#065F46;\">\u2705 \u30b9\u30c6\u30c3\u30d71\uff1a\u307e\u305aMFA\u3092\u5168\u30a2\u30ab\u30a6\u30f3\u30c8\u306b\u8a2d\u5b9a\u3059\u308b<\/h3>\n <p>\u4ed5\u4e8b\u306e\u30e1\u30fc\u30eb\u30fb\u793e\u5185\u30b7\u30b9\u30c6\u30e0\u30fb\u30af\u30e9\u30a6\u30c9\u30b5\u30fc\u30d3\u30b9\u3001\u3059\u3079\u3066\u306bMFA\u3092\u6709\u52b9\u5316\u3057\u3066\u304f\u3060\u3055\u3044\u3002\u8a8d\u8a3c\u30a2\u30d7\u30ea\uff08Google Authenticator \/ Microsoft Authenticator\uff09\u304c\u63a8\u5968\u3067\u3059\u3002SMS\u8a8d\u8a3c\u3088\u308a\u3082\u5b89\u5168\u3067\u3001\u8a2d\u5b9a\u306f5\u5206\u3067\u5b8c\u4e86\u3057\u307e\u3059\u3002<\/p>\n <\/div>\n\n <div class=\"success-box\">\n <h3 style=\"margin-top:0; border:none; padding:0; color:#065F46;\">\u2705 \u30b9\u30c6\u30c3\u30d72\uff1a\u30d1\u30b9\u30ef\u30fc\u30c9\u30de\u30cd\u30fc\u30b8\u30e3\u30fc\u3092\u5c0e\u5165\u3057\u3066\u4f7f\u3044\u56de\u3057\u3092\u30bc\u30ed\u306b\u3059\u308b<\/h3>\n <p>\u7121\u6599\u306eBitwarden\u304b\u3089\u59cb\u3081\u3066\u307f\u307e\u3057\u3087\u3046\u3002\u307e\u305a3\u3064\u306e\u4e3b\u8981\u30a2\u30ab\u30a6\u30f3\u30c8\uff08\u4ed5\u4e8b\u30e1\u30fc\u30eb\u30fb\u793e\u5185\u30b7\u30b9\u30c6\u30e0\u30fb\u500b\u4eba\u30e1\u30fc\u30eb\uff09\u306e\u30d1\u30b9\u30ef\u30fc\u30c9\u3092\u30e9\u30f3\u30c0\u30e0\u751f\u6210\u3067\u5909\u66f4\u3057\u3001\u30de\u30cd\u30fc\u30b8\u30e3\u30fc\u306b\u4fdd\u5b58\u3059\u308b\u3068\u3053\u308d\u304b\u3089\u59cb\u3081\u308b\u3068\u7fd2\u6163\u5316\u3057\u3084\u3059\u3044\u3067\u3059\u3002<\/p>\n <\/div>\n\n <div class=\"success-box\">\n <h3 style=\"margin-top:0; border:none; padding:0; color:#065F46;\">\u2705 \u30b9\u30c6\u30c3\u30d73\uff1aHave I Been Pwned \u3067\u81ea\u5206\u306e\u30e1\u30fc\u30eb\u30a2\u30c9\u30ec\u30b9\u3092\u78ba\u8a8d\u3059\u308b<\/h3>\n <p><a href=\"https:\/\/haveibeenpwned.com\" style=\"color:#059669;\" target=\"_blank\">haveibeenpwned.com<\/a> \u306b\u30e1\u30fc\u30eb\u30a2\u30c9\u30ec\u30b9\u3092\u5165\u529b\u3059\u308b\u3068\u3001\u904e\u53bb\u306e\u6f0f\u6d29\u30a4\u30f3\u30b7\u30c7\u30f3\u30c8\u306b\u542b\u307e\u308c\u3066\u3044\u308b\u304b\u7121\u6599\u3067\u78ba\u8a8d\u3067\u304d\u307e\u3059\u3002\u300c\u6f0f\u6d29\u3042\u308a\u300d\u3068\u8868\u793a\u3055\u308c\u305f\u30b5\u30fc\u30d3\u30b9\u306f\u5373\u5ea7\u306b\u30d1\u30b9\u30ef\u30fc\u30c9\u3092\u5909\u66f4\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n <\/div>\n\n \n <h2>\u5b9f\u8df5\u30c1\u30a7\u30c3\u30af\u30ea\u30b9\u30c8 \u2015 \u30d1\u30b9\u30ef\u30fc\u30c9\u30fbMFA\u7de8<\/h2>\n\n <div class=\"checklist-box\">\n <div class=\"checklist-section\">\n <div class=\"checklist-category\">\ud83d\udd10 \u30d1\u30b9\u30ef\u30fc\u30c9\u7ba1\u7406<\/div>\n <ul class=\"checklist-items\">\n <li><span class=\"check-icon\"><\/span>\u3059\u3079\u3066\u306e\u696d\u52d9\u30a2\u30ab\u30a6\u30f3\u30c8\u3067\u7570\u306a\u308b\u30d1\u30b9\u30ef\u30fc\u30c9\u3092\u4f7f\u7528\u3057\u3066\u3044\u308b<\/li>\n <li><span class=\"check-icon\"><\/span>\u30d1\u30b9\u30ef\u30fc\u30c9\u306f15\u6587\u5b57\u4ee5\u4e0a\u306e\u30e9\u30f3\u30c0\u30e0\u6587\u5b57\u5217\u307e\u305f\u306f\u30d1\u30b9\u30d5\u30ec\u30fc\u30ba\u306b\u3057\u3066\u3044\u308b\uff08NIST SP 800-63B Rev.4\u63a8\u5968\uff09<\/li>\n <li><span class=\"check-icon\"><\/span>\u30d1\u30b9\u30ef\u30fc\u30c9\u30de\u30cd\u30fc\u30b8\u30e3\u30fc\u3092\u5c0e\u5165\u30fb\u6d3b\u7528\u3057\u3066\u3044\u308b<\/li>\n <li><span class=\"check-icon\"><\/span>Have I Been Pwned \u3067\u30e1\u30fc\u30eb\u30a2\u30c9\u30ec\u30b9\u306e\u6f0f\u6d29\u78ba\u8a8d\u3092\u884c\u3063\u305f<\/li>\n <\/ul>\n\n <div class=\"checklist-category\">\ud83d\udd11 MFA\u30fb\u8a8d\u8a3c\u8a2d\u5b9a<\/div>\n <ul class=\"checklist-items\">\n <li><span class=\"check-icon\"><\/span>\u4ed5\u4e8b\u306e\u30e1\u30fc\u30eb\u30a2\u30ab\u30a6\u30f3\u30c8\u306bMFA\u3092\u8a2d\u5b9a\u3057\u3066\u3044\u308b<\/li>\n <li><span class=\"check-icon\"><\/span>\u793e\u5185\u30b7\u30b9\u30c6\u30e0\u30fb\u30af\u30e9\u30a6\u30c9\u30b5\u30fc\u30d3\u30b9\u306bMFA\u3092\u8a2d\u5b9a\u3057\u3066\u3044\u308b<\/li>\n <li><span class=\"check-icon\"><\/span>MFA\u306fSMS\u8a8d\u8a3c\u3067\u306f\u306a\u304f\u8a8d\u8a3c\u30a2\u30d7\u30ea\u3092\u4f7f\u7528\u3057\u3066\u3044\u308b<\/li>\n <li><span class=\"check-icon\"><\/span>\u8eab\u306b\u899a\u3048\u306e\u306a\u3044MFA\u901a\u77e5\u306f\u627f\u8a8d\u305b\u305a\u3001IT\u62c5\u5f53\u8005\u306b\u5831\u544a\u3059\u308b\u7fd2\u6163\u304c\u3042\u308b<\/li>\n <\/ul>\n\n <div class=\"checklist-category\">\ud83d\udee1\ufe0f \u30a4\u30f3\u30b7\u30c7\u30f3\u30c8\u5bfe\u5fdc<\/div>\n <ul class=\"checklist-items\">\n <li><span class=\"check-icon\"><\/span>\u4e0d\u5be9\u306a\u30ed\u30b0\u30a4\u30f3\u901a\u77e5\u304c\u5c4a\u3044\u305f\u5834\u5408\u306e\u5831\u544a\u5148\u3092\u77e5\u3063\u3066\u3044\u308b<\/li>\n <li><span class=\"check-icon\"><\/span>\u30d1\u30b9\u30ef\u30fc\u30c9\u6f0f\u6d29\u304c\u7591\u308f\u308c\u308b\u5834\u5408\u306e\u5bfe\u5fdc\u624b\u9806\u3092\u628a\u63e1\u3057\u3066\u3044\u308b<\/li>\n <li><span class=\"check-icon\"><\/span>\u9000\u8077\u30fb\u7570\u52d5\u6642\u306b\u30a2\u30ab\u30a6\u30f3\u30c8\u306e\u68da\u5378\u3057\u3068\u6a29\u9650\u5909\u66f4\u3092\u884c\u3046\u4ed5\u7d44\u307f\u304c\u3042\u308b<\/li>\n <\/ul>\n <\/div>\n <\/div>\n\n \n <h2>\u307e\u3068\u3081<\/h2>\n <p>\u8a8d\u8a3c\u306e\u5f37\u5316\u306f\u3001\u30b5\u30a4\u30d0\u30fc\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u306e\u4e2d\u3067\u3082<strong>\u6700\u3082\u30b3\u30b9\u30c8\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u304c\u9ad8\u3044\u5bfe\u7b56<\/strong>\u3067\u3059\u3002MFA\u3092\u8a2d\u5b9a\u3059\u308b\u3060\u3051\u3067MFA\u6709\u52b9\u30a2\u30ab\u30a6\u30f3\u30c8\u306e99.99%\u4ee5\u4e0a\u304c\u5b89\u5168\u3092\u7dad\u6301\u3067\u304d\uff08Microsoft Research 2023\uff09\u3001\u30d1\u30b9\u30ef\u30fc\u30c9\u30de\u30cd\u30fc\u30b8\u30e3\u30fc\u3067\u4f7f\u3044\u56de\u3057\u3092\u306a\u304f\u305b\u3070\u3001\u30af\u30ec\u30c7\u30f3\u30b7\u30e3\u30eb\u30b9\u30bf\u30c3\u30d5\u30a3\u30f3\u30b0\u306e\u30ea\u30b9\u30af\u306f\u307b\u307c\u30bc\u30ed\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n <p>\u96e3\u3057\u3044\u6280\u8853\u306f\u5fc5\u8981\u3042\u308a\u307e\u305b\u3093\u3002\u4eca\u65e5\u3053\u306e\u30e1\u30fc\u30eb\u3092\u8aad\u307f\u7d42\u3048\u305f\u3089\u3001\u307e\u305a\u4e00\u3064\u306e\u30a2\u30ab\u30a6\u30f3\u30c8\u306bMFA\u3092\u8a2d\u5b9a\u3057\u3066\u307f\u3066\u304f\u3060\u3055\u3044\u3002\u305d\u308c\u304c\u7b2c\u4e00\u6b69\u3067\u3059\u3002<\/p>\n\n \n <div class=\"next-issue-box\">\n <div class=\"next-label\">\u25b6 NEXT ISSUE \u2014 4\u670822\u65e5\uff08\u6c34\uff09\u914d\u4fe1\u4e88\u5b9a<\/div>\n <h3>\u7b2c4\u56de\uff1aSNS\u3067\u60c5\u5831\u3092\u5b88\u308b \u2015 \u30d7\u30e9\u30a4\u30d0\u30b7\u30fc\u7ba1\u7406\u3068\u904e\u5270\u5171\u6709\u30ea\u30b9\u30af<\/h3>\n <p>X\uff08\u65e7Twitter\uff09\u30fbInstagram\u30fbLinkedIn\u3067\u306e\u300c\u3046\u3063\u304b\u308a\u6295\u7a3f\u300d\u304c\u3001\u3069\u306e\u3088\u3046\u306b\u653b\u6483\u8005\u306b\u60aa\u7528\u3055\u308c\u308b\u306e\u304b\u3092\u89e3\u8aac\u3057\u307e\u3059\u3002LINE\u4e57\u3063\u53d6\u308a\u30fb\u306a\u308a\u3059\u307e\u3057\u8a50\u6b3a\u306e\u6700\u65b0\u624b\u53e3\u3068\u3001\u30d7\u30e9\u30c3\u30c8\u30d5\u30a9\u30fc\u30e0\u5225\u306e\u30d7\u30e9\u30a4\u30d0\u30b7\u30fc\u8a2d\u5b9a\u3082\u7d39\u4ecb\u3057\u307e\u3059\u3002<\/p>\n <\/div>\n\n \n <h2>\u53c2\u8003\u60c5\u5831<\/h2>\n <ul class=\"ref-list\">\n <li>Microsoft Research\u300cHow effective is multifactor authentication at deterring cyberattacks?\u300d\uff082023\u5e74\u66f4\u65b0\u7248 \u2014 MFA\u6709\u52b9\u30a2\u30ab\u30a6\u30f3\u30c8\u306e99.99%\u4ee5\u4e0a\u304c\u5b89\u5168\u3092\u7dad\u6301\uff09\n <a href=\"https:\/\/cdn-dynmedia-1.microsoft.com\/is\/content\/microsoftcorp\/microsoft\/final\/en-us\/microsoft-brand\/documents\/mfa-microsoft-research-paper-update-347347.pdf\" target=\"_blank\">https:\/\/cdn-dynmedia-1.microsoft.com\/is\/content\/microsoftcorp\/microsoft\/final\/en-us\/microsoft-brand\/documents\/mfa-microsoft-research-paper-update-347347.pdf<\/a>\n <\/li>\n <li>Verizon\u300cData Breach Investigations Report 2025\u300d\uff08\u8a8d\u8a3c\u60c5\u5831\u76d7\u7528\u304c\u521d\u671f\u4fb5\u5165\u7d4c\u8def\u306e22%\u3001Web\u30a2\u30d7\u30ea\u653b\u6483\u3067\u306f88%\uff09\n <a href=\"https:\/\/www.verizon.com\/business\/resources\/reports\/dbir\/\" target=\"_blank\">https:\/\/www.verizon.com\/business\/resources\/reports\/dbir\/<\/a>\n <\/li>\n <li>Verizon DBIR 2025 \u30af\u30ec\u30c7\u30f3\u30b7\u30e3\u30eb\u30b9\u30bf\u30c3\u30d5\u30a3\u30f3\u30b0\u8a73\u7d30\u30ec\u30dd\u30fc\u30c8\uff08\u8a8d\u8a3c\u8a66\u884c\u306e\u4e2d\u592e\u502419%\u304c\u30b9\u30bf\u30c3\u30d5\u30a3\u30f3\u30b0\u653b\u6483\uff09\n <a href=\"https:\/\/www.verizon.com\/business\/resources\/articles\/credential-stuffing-attacks-2025-dbir-research\/\" target=\"_blank\">https:\/\/www.verizon.com\/business\/resources\/articles\/credential-stuffing-attacks-2025-dbir-research\/<\/a>\n <\/li>\n <li>RSA\u300c2026 ID IQ Report\u300d\uff08\u30b0\u30ed\u30fc\u30d0\u30eb69%\u306e\u7d44\u7e54\u304cID\u4fb5\u5bb3\u3092\u7d4c\u9a13\u3001\u524d\u5e74\u6bd4+27\u30dd\u30a4\u30f3\u30c8\uff09\n <a href=\"https:\/\/www.rsa.com\/news\/press-releases\/soaring-identity-costs-and-stalling-passwordless-progress-in-japan-rsa-id-iq-report-unveils-top-identity-threats\/\" target=\"_blank\">https:\/\/www.rsa.com\/news\/press-releases\/soaring-identity-costs-and-stalling-passwordless-progress-in-japan-rsa-id-iq-report-unveils-top-identity-threats\/<\/a>\n <\/li>\n <li>NIST SP 800-63B Revision 4\u300cDigital Identity Guidelines\u300d\uff082025\u5e748\u6708\u78ba\u5b9a\u7248 \u2014 \u6700\u5c0f15\u6587\u5b57\u30fb\u8907\u96d1\u3055\u30eb\u30fc\u30eb\u7981\u6b62\u30fb\u5b9a\u671f\u5909\u66f4\u5ec3\u6b62\uff09\n <a href=\"https:\/\/csrc.nist.gov\/pubs\/sp\/800\/63\/b\/4\/final\" target=\"_blank\">https:\/\/csrc.nist.gov\/pubs\/sp\/800\/63\/b\/4\/final<\/a>\n <\/li>\n <li>Have I Been Pwned\uff08\u30e1\u30fc\u30eb\u30a2\u30c9\u30ec\u30b9\u6f0f\u6d29\u30c1\u30a7\u30c3\u30af \uff0f 2025\u5e74\u306b13\u5104\u4ef6\u8d85\u306e\u65b0\u898f\u30d1\u30b9\u30ef\u30fc\u30c9\u3092\u8ffd\u52a0\uff09\n <a href=\"https:\/\/haveibeenpwned.com\" target=\"_blank\">https:\/\/haveibeenpwned.com<\/a>\n <\/li>\n <li>IPA\u300c\u60c5\u5831\u30bb\u30ad\u30e5\u30ea\u30c6\u30a310\u5927\u8105\u5a01 2025\u300d\n <a href=\"https:\/\/www.ipa.go.jp\/security\/10threats\/2025.html\" target=\"_blank\">https:\/\/www.ipa.go.jp\/security\/10threats\/2025.html<\/a>\n <\/li>\n <\/ul>\n\n <hr style=\"border:none; border-top:1px solid #E2E8F0; margin:2.5em 0;\"\/>\n\n<p class=\"note-text\">\n\u203b2026\u5e744\u670815\u65e5\u6642\u70b9\u306e\u60c5\u5831\u3067\u3059\u3002<br\/>\u6700\u65b0\u60c5\u5831\u306f\u5404\u516c\u5f0f\u30b5\u30a4\u30c8\u3067\u78ba\u8a8d\u3057\u3066\u304f\u3060\u3055\u3044\u3002\n<\/p>\n\n<hr style=\"border: none; border-top: 1px solid #E5E7EB; margin: 3em 0;\"\/>\n\n<p>\u6700\u5f8c\u307e\u3067\u304a\u8aad\u307f\u3044\u305f\u3060\u304d\u3001\u3042\u308a\u304c\u3068\u3046\u3054\u3056\u3044\u307e\u3057\u305f\u3002<\/p>\n\n<p>\n\u5f0a\u793e\u306e\u793e\u540d\u3068\u306a\u3063\u3066\u3044\u308b\u300c\u30ec\u30b8\u30ea\u30a8\u30f3\u30b9\u300d\u306f\u3001<br\/>\n\u300c\u56de\u5fa9\u529b\u300d\u3084\u300c\u5f3e\u6027\u300d\u3092\u610f\u5473\u3059\u308b\u82f1\u5358\u8a9e\u3067\u3059\u3002\n<\/p>\n\n<p>\n\u3064\u307e\u308a\u3001\u74b0\u5883\u306e\u5909\u5316\u3084\u7a81\u767a\u7684\u306a\u4e8b\u8c61\u306b\u5bfe\u3057\u3066<br\/>\n\u3057\u306a\u3084\u304b\u306b\u7c98\u308a\u5f37\u304f\u5bfe\u5fdc\u3057\u3066\u3044\u304f<br\/>\n\u7acb\u3061\u4f4d\u7f6e\u3092\u610f\u5473\u3057\u3066\u3044\u307e\u3059\u3002\n<\/p>\n\n<p>\n\u76ee\u307e\u3050\u308b\u3057\u304f\u5909\u5316\u3059\u308b\u6642\u6d41\u306e\u4e2d\u3067\u3001<br\/>\n\u305d\u308c\u3092\u898b\u6975\u3081\u3064\u3064\u6d41\u3055\u308c\u306a\u3044\u89e3\u6c7a\u7b56\u3092\u63d0\u6848\u81f4\u3057\u307e\u3059\u3002\n<\/p>\n\n<p style=\"font-size: 0.9em; margin-top: 2em;\">\n****************************<br\/>\n\u30b5\u30a4\u30d0\u30fc\u30ec\u30b8\u30ea\u30a8\u30f3\u30b9\u682a\u5f0f\u4f1a\u793e<br\/>\n\u65e5\u672c\u30ec\u30b8\u30ea\u30a8\u30f3\u30b9\u682a\u5f0f\u4f1a\u793e<br\/>\n\u3012103-0026<br\/>\n\u6771\u4eac\u90fd\u4e2d\u592e\u533a\u65e5\u672c\u6a4b\u515c\u753a17\u756a1\u53f7<br\/>\n\u65e5\u672c\u6a4b\u30ed\u30a4\u30e4\u30eb\u30d7\u30e9\u30b6706<br\/>\nTel 03-6823-8902<br\/>\nE-mail: <a href=\"\/cdn-cgi\/l\/email-protection\" class=\"__cf_email__\" data-cfemail=\"aec7c0c8c1eec4cfdecfc083dccbddc7c2c7cbc0cdcb80cdc180c4de\">[email protected]<\/a><br\/>\nhttps:\/\/japan-resilience.co.jp\/cyber<br\/>\n****************************\n<\/p>\n\n<\/article>\n<\/div>\n<script data-cfasync=\"false\" src=\"\/cdn-cgi\/scripts\/5c5dd728\/cloudflare-static\/email-decode.min.js\"><\/script><\/body>\n<\/html>\n","protected":false},"excerpt":{"rendered":"<p>\u30d1\u30b9\u30ef\u30fc\u30c9\u3068MFA\u3067\u5b88\u308b \u2015 \u8a8d\u8a3c\u5f37\u5316\u306e\u5b9f\u8df5\u30ac\u30a4\u30c9\uff5c\u793e\u4f1a\u4eba1\u5e74\u76ee\u306e\u30b5\u30a4\u30d0\u30fc\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u57fa\u672c \u7b2c3\u56de \u30b5\u30a4\u30d0\u30fc\u30ec\u30b8\u30ea\u30a8\u30f3\u30b9\u682a\u5f0f\u4f1a\u793e \u30e1\u30fc\u30eb\u30de\u30ac\u30b8\u30f3 \uff0f 2026\u5e744\u6708\u53f7 \u7b2c3\u56de \u30d1\u30b9\u30ef\u30fc\u30c9\u3068MFA\u3067\u5b88\u308b\u2015 \u8a8d\u8a3c\u5f37\u5316\u306e\u5b9f\u8df5\u30ac […]<\/p>\n","protected":false},"author":8,"featured_media":2605,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"om_disable_all_campaigns":false,"_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"_uf_show_specific_survey":0,"_uf_disable_surveys":false,"_jetpack_memberships_contains_paid_content":false,"vkexunit_cta_each_option":"","footnotes":""},"categories":[8],"tags":[],"class_list":["post-3674","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-information"],"jetpack_featured_media_url":"https:\/\/japan-resilience.co.jp\/cyber\/wp-content\/uploads\/2024\/09\/d05706d3e2e4253a4c22ba1114d027b1.png","jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/japan-resilience.co.jp\/cyber\/wp-json\/wp\/v2\/posts\/3674","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/japan-resilience.co.jp\/cyber\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/japan-resilience.co.jp\/cyber\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/japan-resilience.co.jp\/cyber\/wp-json\/wp\/v2\/users\/8"}],"replies":[{"embeddable":true,"href":"https:\/\/japan-resilience.co.jp\/cyber\/wp-json\/wp\/v2\/comments?post=3674"}],"version-history":[{"count":8,"href":"https:\/\/japan-resilience.co.jp\/cyber\/wp-json\/wp\/v2\/posts\/3674\/revisions"}],"predecessor-version":[{"id":3683,"href":"https:\/\/japan-resilience.co.jp\/cyber\/wp-json\/wp\/v2\/posts\/3674\/revisions\/3683"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/japan-resilience.co.jp\/cyber\/wp-json\/wp\/v2\/media\/2605"}],"wp:attachment":[{"href":"https:\/\/japan-resilience.co.jp\/cyber\/wp-json\/wp\/v2\/media?parent=3674"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/japan-resilience.co.jp\/cyber\/wp-json\/wp\/v2\/categories?post=3674"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/japan-resilience.co.jp\/cyber\/wp-json\/wp\/v2\/tags?post=3674"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}