{"id":4478,"date":"2024-04-25T09:30:54","date_gmt":"2024-04-25T00:30:54","guid":{"rendered":"https:\/\/blog-github-com-develop.go-vip.co\/jp\/?p=4478"},"modified":"2024-04-25T09:13:35","modified_gmt":"2024-04-25T00:13:35","slug":"securing-millions-of-developers-through-2fa","status":"publish","type":"post","link":"https:\/\/blog-github-com-develop.go-vip.co\/jp\/2024-04-25-securing-millions-of-developers-through-2fa\/","title":{"rendered":"2FA\u3067\u6570\u767e\u4e07\u4eba\u306e\u958b\u767a\u8005\u306e\u5b89\u5168\u3092\u5b88\u308b"},"content":{"rendered":"<section class=\"container-xl mx-auto p-responsive-blog\" style=\"margin-top: 20px;\">\n<div class=\"gutter-spacious\">\n<div class=\"col-12 offset-lg-1 col-lg-10\">\n<div class=\"text-mono f5-mktg color-fg-muted mb-12px\">Authors<\/div>\n<div class=\"d-flex flex-wrap pb-1 flex-items-start\">\n<div class=\"d-flex flex-wrap\"><a class=\"d-flex flex-nowrap flex-items-center Link--primary f4-mktg text-bold mb-3 mr-4 mr-lg-5\" style=\"line-height: 1.25 !important;\" href=\"https:\/\/blog-github-com-develop.go-vip.co\/author\/itsjiaqi\/\"><br \/>\n<img loading=\"lazy\" decoding=\"async\" class=\"d-block height-auto circle byline__photo--recirc mr-14px\" style=\"padding-right: 10px;\" src=\"https:\/\/avatars.githubusercontent.com\/u\/8596021?v=4?v=4&amp;s=200\" alt=\"Michael Hanley\" width=\"40\" height=\"40\" \/>Michael Hanley<\/a><\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/section>\n<p style=\"font-size: 14px; padding-top: 20px;\">GitHub \u3067\u306f\u3001\u30bd\u30d5\u30c8\u30a6\u30a7\u30a2\u30fb\u30a8\u30b3\u30b7\u30b9\u30c6\u30e0\u3092\u3088\u308a\u5b89\u5168\u306b\u3059\u308b\u3068\u3044\u3046\u8cac\u4efb\u306e\u4e00\u74b0\u3068\u3057\u3066\u30012FA \u306e\u9069\u7528\u3092\u5287\u7684\u306b\u5897\u3084\u3057\u307e\u3057\u305f\u3002\u4f55\u767e\u4e07\u4eba\u3082\u306e\u958b\u767a\u8005\u306e\u5b89\u5168\u3092\u3069\u306e\u3088\u3046\u306b\u5b88\u3063\u3066\u3044\u308b\u306e\u304b\u3001\u305d\u3057\u3066\u306a\u305c\u79c1\u305f\u3061\u304c\u3088\u308a\u591a\u304f\u306e\u7d44\u7e54\u306b\u3053\u3046\u3057\u305f\u53d6\u308a\u7d44\u307f\u306b\u53c2\u52a0\u3059\u308b\u3088\u3046\u4fc3\u3057\u3066\u3044\u308b\u306e\u304b\u306b\u3064\u3044\u3066\u3054\u7d39\u4ecb\u3057\u307e\u3059\u3002<\/p>\n<hr \/>\n<p>\u30c6\u30af\u30ce\u30ed\u30b8\u30fc\u306f\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u4e0a\u306e\u8105\u5a01\u306e\u62e1\u6563\u306b\u5bfe\u6297\u3059\u308b\u305f\u3081\u306b\u5927\u304d\u304f\u9032\u6b69\u3057\u307e\u3057\u305f\u304c\u3001<strong>\u6765\u308b\u3079\u304d\u6b21\u306e\u30b5\u30a4\u30d0\u30fc\u653b\u6483\u3092\u9632\u3050\u306b\u306f\u3001\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u306e\u57fa\u672c\u3092\u6b63\u3057\u304f\u7406\u89e3\u3059\u308b\u3053\u3068\u304c\u91cd\u8981\u3067\u3042\u308a\u3001\u30bd\u30d5\u30c8\u30a6\u30a7\u30a2\u30fb\u30a8\u30b3\u30b7\u30b9\u30c6\u30e0\u3092\u4fdd\u8b77\u3059\u308b\u53d6\u308a\u7d44\u307f\u306f\u3001\u79c1\u305f\u3061\u5168\u54e1\u304c\u4f9d\u5b58\u3057\u3066\u3044\u308b\u30bd\u30d5\u30c8\u30a6\u30a7\u30a2\u3092\u8a2d\u8a08\u3001\u69cb\u7bc9\u3001\u30e1\u30f3\u30c6\u30ca\u30f3\u30b9\u3059\u308b\u958b\u767a\u8005\u3092\u4fdd\u8b77\u3057\u306a\u3051\u308c\u3070\u306a\u3089\u306a\u3044\u3068\u3044\u3046\u73fe\u5b9f\u304c\u3042\u308a\u307e\u3059\u3002<\/strong><\/p>\n<p>\u4e16\u754c\u6700\u5927\u306e\u958b\u767a\u8005\u30b3\u30df\u30e5\u30cb\u30c6\u30a3\u306e\u672c\u62e0\u5730\u3067\u3042\u308bGitHub\u306f\u3001\u30bd\u30d5\u30c8\u30a6\u30a7\u30a2\u30b5\u30d7\u30e9\u30a4\u30c1\u30a7\u30fc\u30f3\u306e\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u5411\u4e0a\u3092\u652f\u63f4\u3059\u308b\u30e6\u30cb\u30fc\u30af\u306a\u7acb\u5834\u306b\u3042\u308a\u307e\u3059\u30022022\u5e745\u6708\u3001\u79c1\u305f\u3061\u306f\u30b5\u30d7\u30e9\u30a4\u30c1\u30a7\u30fc\u30f3\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u306e\u6c34\u6e96\u3092\u9ad8\u3081\u308b\u305f\u3081\u3001\u305d\u306e\u30d5\u30a1\u30fc\u30b9\u30c8\u30ea\u30f3\u30af\u3067\u3042\u308b\u958b\u767a\u8005\u306e\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u306b\u53d6\u308a\u7d44\u3080\u30a4\u30cb\u30b7\u30a2\u30c6\u30a3\u30d6\u3092<a href=\"https:\/\/blog-github-com-develop.go-vip.co\/jp\/2022-05-13-software-security-starts-with-the-developer-securing-developer-accounts-with-2fa\/\" target=\"_blank\" rel=\"noopener\">\u767a\u8868<\/a>\u3057\u307e\u3057\u305f\u3002\u5f37\u56fa\u306a\u591a\u8981\u7d20\u8a8d\u8a3c\u306f\u3001\u30a2\u30ab\u30a6\u30f3\u30c8\u306e\u4e57\u3063\u53d6\u308a\u3084\u305d\u308c\u306b\u7d9a\u304f\u30b5\u30d7\u30e9\u30a4\u30c1\u30a7\u30fc\u30f3\u306e\u4fb5\u5bb3\u306b\u5bfe\u3059\u308b\u6700\u5584\u306e\u9632\u5fa1\u7b56\u306e\u4e00\u3064\u3067\u3042\u308b\u3053\u3068\u306b\u5909\u308f\u308a\u306f\u306a\u3044\u305f\u3081\u3001\u79c1\u305f\u3061\u306f2023\u5e74\u672b\u307e\u3067\u306b\u3001GitHub.com\u3067\u30b3\u30fc\u30c9\u3092\u5229\u7528\u3059\u308b\u30e6\u30fc\u30b6\u30fc\u306b\u5bfe\u3057\u30011\u3064\u4ee5\u4e0a\u306e2\u8981\u7d20\u8a8d\u8a3c\uff082FA\uff09\u306e\u6709\u52b9\u5316\u3092\u5fc5\u9808\u8981\u4ef6\u3068\u3059\u308b\u3068\u3044\u3046\u91ce\u5fc3\u7684\u306a\u76ee\u6a19\u3092\u8a2d\u5b9a\u3057\u307e\u3057\u305f\u3002<\/p>\n<p>\u305d\u306e\u5f8c\u3001\u958b\u767a\u8005\u306b\u3068\u3063\u3066\u30b7\u30fc\u30e0\u30ec\u30b9\u306a\u30a8\u30af\u30b9\u30da\u30ea\u30a8\u30f3\u30b9\u306b\u6700\u9069\u5316\u3059\u308b\u305f\u3081\u3001\u3053\u306e\u5fc5\u9808\u8981\u4ef6\u306e<a href=\"https:\/\/blog-github-com-develop.go-vip.co\/2022-12-14-raising-the-bar-for-software-security-next-steps-for-github-com-2fa\/\" target=\"_blank\" rel=\"noopener\">\u5c55\u958b<\/a>\u306b\u95a2\u3059\u308b\u30ea\u30b5\u30fc\u30c1\u3068\u30c7\u30b6\u30a4\u30f3\u306b1\u5e74\u5206\u306e\u6295\u8cc7\u3092\u884c\u3044\u3001\u305d\u306e\u5f8c\u3001\u8981\u4ef6\u306e\u898f\u6a21\u3092\u62e1\u5927\u3057\u7d9a\u3051\u306a\u304c\u3089\u3001\u30e6\u30fc\u30b6\u30fc\u306e\u30aa\u30f3\u30dc\u30fc\u30c7\u30a3\u30f3\u30b0\u3092\u6210\u529f\u3055\u305b\u308b\u305f\u3081\u306b<a href=\"https:\/\/blog-github-com-develop.go-vip.co\/jp\/2023-03-17-raising-the-bar-for-software-security-github-2fa-begins-march-13\/\" target=\"_blank\" rel=\"noopener\">\u6bb5\u968e\u7684\u306a\u30ed\u30fc\u30eb\u30a2\u30a6\u30c8<\/a>\u3092\u884c\u3044\u307e\u3057\u305f\u3002\u958b\u767a\u8005\u304cGitHub.com\u3067\u53ef\u80fd\u306a\u9650\u308a\u5b89\u5168\u306b\u5229\u7528\u3067\u304d\u308b\u3088\u3046\u306b\u3059\u308b\u305f\u3081\u306e\u79c1\u305f\u3061\u306e\u53d6\u308a\u7d44\u307f\u306f\u3053\u3053\u3067\u7d42\u308f\u308a\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u3002\u4eca\u65e5\u306f\u3001\u79c1\u305f\u3061\u306e2FA\u767b\u9332\u306e\u7b2c\uff11\u6bb5\u968e\u306e\u7d50\u679c\u3092\u5171\u6709\u3057\u3001\u3088\u308a\u591a\u304f\u306e\u7d44\u7e54\u304c\u305d\u308c\u305e\u308c\u306e\u30d7\u30e9\u30c3\u30c8\u30d5\u30a9\u30fc\u30e0\u3067\u540c\u69d8\u306e\u8981\u4ef6\u3092\u5b9f\u88c5\u3059\u308b\u3088\u3046\u547c\u3073\u304b\u3051\u3066\u3044\u307e\u3059\u3002\u3055\u3042\u3001\u8a73\u3057\u304f\u307f\u3066\u3044\u304d\u307e\u3057\u3087\u3046\u3002<\/p>\n<h2 id=\"%e7%b5%90%e6%9e%9c-%f0%9f%9a%80\">\u7d50\u679c \ud83d\ude80<a href=\"#%e7%b5%90%e6%9e%9c-%f0%9f%9a%80\" class=\"heading-link\" aria-label=\"\u7d50\u679c \ud83d\ude80\" data-anchorjs-icon=\"#\" style=\"padding-left: 0.375em;\"><\/a><\/h2>\n<p>\u6211\u3005\u306f\u30012023\u5e74\u306e\u30a4\u30cb\u30b7\u30a2\u30c1\u30d6\u306e\u6700\u521d\u306e\u6210\u679c\u3068\u3001\u30bd\u30d5\u30c8\u30a6\u30a7\u30a2\u30fb\u30a8\u30b3\u30b7\u30b9\u30c6\u30e0\u3092\u3088\u308a\u30bb\u30ad\u30e5\u30a2\u306b\u3059\u308b\u305f\u3081\u306e\u30a4\u30f3\u30d1\u30af\u30c8\u3092\u8a87\u308a\u306b\u601d\u3044\u307e\u3059\u3002\u6b21\u306e\u3088\u3046\u306a\u7d50\u679c\u3068\u306a\u308a\u307e\u3057\u305f\uff1a<\/p>\n<ul>\n<li>GitHub.com\u3067\u306e2FA\u306e\u5c0e\u5165\u304c\u5287\u7684\u306b\u5897\u52a0\u3002\u30bd\u30d5\u30c8\u30a6\u30a7\u30a2\u30b5\u30d7\u30e9\u30a4\u30c1\u30a7\u30fc\u30f3\u306b\u6700\u3082\u91cd\u8981\u306a\u5f71\u97ff\u3092\u4e0e\u3048\u308b\u30e6\u30fc\u30b6\u30fc\u306b\u7126\u70b9\u3092\u5f53\u3066\u307e\u3057\u305f\u3002<\/li>\n<li>\u30e6\u30fc\u30b6\u30fc\u304c\u3001\u30d1\u30b9\u30ad\u30fc\u3092\u542b\u3080\u3001\u3088\u308a\u5b89\u5168\u306a 2FA \u306e\u624b\u6bb5\u3092\u63a1\u7528\u3057\u307e\u3057\u305f\u3002<\/li>\n<li>2FA\u306b\u95a2\u9023\u3059\u308b\u30b5\u30dd\u30fc\u30c8\u30c1\u30b1\u30c3\u30c8\u306e\u4ef6\u6570\u304c\u7d14\u6e1b\u3057\u307e\u3057\u305f\u3002\u3053\u308c\u306f\u3001\u30b5\u30dd\u30fc\u30c8\u30d7\u30ed\u30bb\u30b9\u306e\u6539\u5584\u3060\u3051\u3067\u306a\u304f\u3001\u30e6\u30fc\u30b6\u30fc\u8abf\u67fb\u3084\u8a2d\u8a08\u3092\u524d\u3082\u3063\u3066\u884c\u3063\u305f\u304a\u304b\u3052\u3067\u3059\u3002<\/li>\n<li><a href=\"https:\/\/blog.rubygems.org\/2022\/06\/13\/making-packages-more-secure.html\" target=\"_blank\" rel=\"noopener\">RubyGems<\/a>\u3001<a href=\"https:\/\/blog.pypi.org\/posts\/2023-05-25-securing-pypi-with-2fa\/\" target=\"_blank\" rel=\"noopener\">PyPI<\/a>\u3001<a href=\"https:\/\/aws.amazon.com\/blogs\/security\/security-by-design-aws-to-enhance-mfa-requirements-in-2024\/\" target=\"_blank\" rel=\"noopener\">AWS<\/a>\u306e\u3088\u3046\u306a\u4ed6\u306e\u7d44\u7e54\u3082\u3001\u30bd\u30d5\u30c8\u30a6\u30a7\u30a2\u30b5\u30d7\u30e9\u30a4\u30c1\u30a7\u30fc\u30f3\u5168\u4f53\u306e\u30cf\u30fc\u30c9\u30eb\u3092\u4e0a\u3052\u308b\u3053\u3068\u306b\u53c2\u52a0\u3057\u3066\u304a\u308a\u30012FA\u63a1\u7528\u306e\u5927\u5e45\u306a\u5897\u52a0\u304c\u3001\u3053\u306e\u8ab2\u984c\u306f\u514b\u670d\u53ef\u80fd\u3067\u3042\u308b\u3053\u3068\u3092\u8a3c\u660e\u3057\u3066\u3044\u307e\u3059\u3002<\/li>\n<\/ul>\n<h3 id=\"2fa%e3%81%ae%e6%8e%a1%e7%94%a8\">2FA\u306e\u63a1\u7528<a href=\"#2fa%e3%81%ae%e6%8e%a1%e7%94%a8\" class=\"heading-link\" aria-label=\"2FA\u306e\u63a1\u7528\" data-anchorjs-icon=\"#\" style=\"padding-left: 0.375em;\"><\/a><\/h3>\n<p>2023\u5e743\u6708\u306b2FA\u5fc5\u9808\u8981\u4ef6\u306e\u5c55\u958b\u3092\u958b\u59cb\u3057\u3066\u4ee5\u6765\u3001GitHub.com\u306e\u5168\u30a2\u30af\u30c6\u30a3\u30d6\u30fb\u30b3\u30f3\u30c8\u30ea\u30d3\u30e5\u30fc\u30bf\u306b\u304a\u3051\u308b<strong>2FA\u306e\u63a1\u7528\u7387\u304c54%\u5897\u52a0<\/strong>\u3057\u307e\u3057\u305f\u30022023\u5e74\u306b2FA\u306e\u5fc5\u9808\u8981\u4ef6\u3092\u53d7\u3051\u53d6\u3063\u305f\u30b3\u30fc\u30c9\u30fb\u30b3\u30f3\u30c8\u30ea\u30d3\u30e5\u30fc\u30bf\u306e\u3046\u3061\u3001<strong>95%\u8fd1\u304f\u304c\u30aa\u30d7\u30c8\u30a4\u30f3<\/strong>\u3057\u3066\u304a\u308a\u3001\u767b\u9332\u8005\u306f\u5897\u3048\u7d9a\u3051\u3066\u3044\u307e\u3059\u3002<\/p>\n<p><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-4482 size-large\" src=\"https:\/\/blog-github-com-develop.go-vip.co\/jp\/wp-content\/uploads\/sites\/2\/2024\/04\/Total-Registered-2FA-Users.png?w=1024&#038;resize=1024%2C412\" alt=\"Graph showing the upward trend of total registered 2FA users from May 2023 to March 2024.\" width=\"1024\" height=\"412\" srcset=\"https:\/\/blog-github-com-develop.go-vip.co\/jp\/wp-content\/uploads\/sites\/2\/2024\/04\/Total-Registered-2FA-Users.png?w=1600 1600w, https:\/\/blog-github-com-develop.go-vip.co\/jp\/wp-content\/uploads\/sites\/2\/2024\/04\/Total-Registered-2FA-Users.png?w=300 300w, https:\/\/blog-github-com-develop.go-vip.co\/jp\/wp-content\/uploads\/sites\/2\/2024\/04\/Total-Registered-2FA-Users.png?w=768 768w, https:\/\/blog-github-com-develop.go-vip.co\/jp\/wp-content\/uploads\/sites\/2\/2024\/04\/Total-Registered-2FA-Users.png?w=1024 1024w, https:\/\/blog-github-com-develop.go-vip.co\/jp\/wp-content\/uploads\/sites\/2\/2024\/04\/Total-Registered-2FA-Users.png?w=1536 1536w\" sizes=\"auto, (max-width: 1000px) 100vw, 1000px\" \/><\/p>\n<h3 id=\"%e3%82%88%e3%82%8a%e5%bc%b7%e5%8a%9b%e3%81%a7%e4%bf%a1%e9%a0%bc%e6%80%a7%e3%81%ae%e9%ab%98%e3%81%84%e8%aa%8d%e8%a8%bc\">\u3088\u308a\u5f37\u529b\u3067\u4fe1\u983c\u6027\u306e\u9ad8\u3044\u8a8d\u8a3c<a href=\"#%e3%82%88%e3%82%8a%e5%bc%b7%e5%8a%9b%e3%81%a7%e4%bf%a1%e9%a0%bc%e6%80%a7%e3%81%ae%e9%ab%98%e3%81%84%e8%aa%8d%e8%a8%bc\" class=\"heading-link\" aria-label=\"\u3088\u308a\u5f37\u529b\u3067\u4fe1\u983c\u6027\u306e\u9ad8\u3044\u8a8d\u8a3c\" data-anchorjs-icon=\"#\" style=\"padding-left: 0.375em;\"><\/a><\/h3>\n<p>\u3053\u306e\u30a4\u30cb\u30b7\u30a2\u30c1\u30d6\u306e\u4e3b\u306a\u7126\u70b9\u306f\u3001\u30e6\u30fc\u30b6\u30fc\u306b\u3088\u308a\u5b89\u5168\u306a2FA\u624b\u6bb5\u3001\u7279\u306b\u73fe\u5728\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u3068\u30e6\u30fc\u30b6\u30d3\u30ea\u30c6\u30a3\u306e\u6700\u5f37\u306e\u7d44\u307f\u5408\u308f\u305b\u3092\u63d0\u4f9b\u3059\u308b<a href=\"https:\/\/blog-github-com-develop.go-vip.co\/jp\/2023-10-12-passkeys-are-generally-available\/\" target=\"_blank\" rel=\"noopener\">\u30d1\u30b9\u30ad\u30fc<\/a>\u306e\u63a1\u7528\u3092\u4fc3\u3059\u3053\u3068\u3067\u3057\u305f\u3002<a href=\"https:\/\/blog-github-com-develop.go-vip.co\/jp\/2023-07-13-introducing-passwordless-authentication-on-github-com\/\" target=\"_blank\" rel=\"noopener\">2023\u5e747\u6708<\/a>\u306b\u30d1\u30b9\u30ad\u30fc\u3092\u30d1\u30d6\u30ea\u30c3\u30af\u30d9\u30fc\u30bf\u3068\u3057\u3066\u30ea\u30ea\u30fc\u30b9\u3057\u3066\u4ee5\u6765\u3001<strong>140\u4e07\u8fd1\u304f\u306e\u30d1\u30b9\u30ad\u30fc\u304cGitHub.com\u306b\u767b\u9332<\/strong>\u3055\u308c\u307e\u3057\u305f\u3002\u3055\u3089\u306b\u7d20\u6674\u3089\u3057\u3044\u3053\u3068\u306b\u3001\u30d1\u30b9\u30ad\u30fc\u306f\u65e5\u3005\u306e\u4f7f\u7528\u306b\u304a\u3044\u3066\u3001WebAuthn\u306b\u88cf\u6253\u3061\u3055\u308c\u305f\u4ed6\u306e\u5f62\u5f0f\u306e2FA\u3092\u6025\u901f\u306b\u8ffd\u3044\u8d8a\u3057\u307e\u3057\u305f\u3002<\/p>\n<p><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-4481 size-large\" src=\"https:\/\/blog-github-com-develop.go-vip.co\/jp\/wp-content\/uploads\/sites\/2\/2024\/04\/Webauthn-Authentication-Success.png?w=1024&#038;resize=1024%2C400\" alt=\"Graph showing Webauthn authentication success by type (passkey versus other) from July 2023 to March 2024. Passkeys surpassed all other types in November 2023, and the gap has widened since then.\" width=\"1024\" height=\"400\" srcset=\"https:\/\/blog-github-com-develop.go-vip.co\/jp\/wp-content\/uploads\/sites\/2\/2024\/04\/Webauthn-Authentication-Success.png?w=1600 1600w, https:\/\/blog-github-com-develop.go-vip.co\/jp\/wp-content\/uploads\/sites\/2\/2024\/04\/Webauthn-Authentication-Success.png?w=300 300w, https:\/\/blog-github-com-develop.go-vip.co\/jp\/wp-content\/uploads\/sites\/2\/2024\/04\/Webauthn-Authentication-Success.png?w=768 768w, https:\/\/blog-github-com-develop.go-vip.co\/jp\/wp-content\/uploads\/sites\/2\/2024\/04\/Webauthn-Authentication-Success.png?w=1024 1024w, https:\/\/blog-github-com-develop.go-vip.co\/jp\/wp-content\/uploads\/sites\/2\/2024\/04\/Webauthn-Authentication-Success.png?w=1536 1536w\" sizes=\"auto, (max-width: 1000px) 100vw, 1000px\" \/><\/p>\n<p>GitHub\u306f\u30d1\u30b9\u30ad\u30fc\u3092\u5f37\u304f\u63a8\u9032\u3057\u3066\u3044\u307e\u3059\u304c\u3001GitHub\u304c\u4e16\u754c\u4e2d\u306e\u958b\u767a\u8005\u306b\u67d4\u8edf\u6027\u3001\u4fe1\u983c\u6027\u3001\u30bb\u30ad\u30e5\u30a2\u306a\u8a8d\u8a3c\u65b9\u6cd5\u3092\u63d0\u4f9b\u3057\u7d9a\u3051\u308b\u3053\u3068\u3082\u91cd\u8981\u3067\u3059\u3002GitHub\u3067\u306f\u3001SMS\u30922FA\u306e\u30aa\u30d7\u30b7\u30e7\u30f3\u3068\u3057\u3066\u5f15\u304d\u7d9a\u304d\u30b5\u30dd\u30fc\u30c8\u3057\u3001\u4ed6\u306e\u65b9\u6cd5\u3092\u63a1\u7528\u3067\u304d\u306a\u3044\u30e6\u30fc\u30b6\u30fc\u306b\u3082\u3001\u53ef\u80fd\u306a\u9650\u308a\u3088\u308a\u30bb\u30ad\u30e5\u30a2\u306a\u65b9\u6cd5\u3092\u63a1\u7528\u3057\u3066\u3082\u3089\u3048\u308b\u3088\u3046\u30012FA\u30aa\u30f3\u30dc\u30fc\u30c7\u30a3\u30f3\u30b0\u306e\u30ef\u30fc\u30af\u30d5\u30ed\u30fc\u3092\u610f\u56f3\u7684\u306b\u8a2d\u8a08\u3057\u3066\u3044\u307e\u3059\u3002\u3053\u306e\u4f5c\u696d\u306b\u3088\u308a\u30012023\u5e74\u521d\u982d\u304b\u30892024\u5e74\u521d\u982d\u306e\u9593\u306b\u3001<strong>\u7b2c\u4e8c\u8981\u56e0\u3068\u3057\u3066\u306eSMS\u306e\u30b7\u30a7\u30a2\u306f\u5168\u4f53\u306725%\u8fd1\u304f\u6e1b\u5c11<\/strong>\u3057\u307e\u3057\u305f\u3002\u79c1\u305f\u3061\u306f\u3001\u30d1\u30b9\u30ad\u30fc\u306e\u63a1\u7528\u3092\u4fc3\u9032\u3057\u7d9a\u3051\u308b\u4e00\u65b9\u3067\u3001\u3088\u308a\u30bb\u30ad\u30e5\u30a2\u3067\u306a\u3044\u30d5\u30a1\u30af\u30bf\u30fc\u30bf\u30a4\u30d7\u306e\u5229\u7528\u3092\u6e1b\u5c11\u3055\u305b\u308b\u4f59\u5730\u304c\u5927\u3044\u306b\u3042\u308b\u3068\u898b\u3066\u304a\u308a\u3001GitHub \u30d7\u30e9\u30c3\u30c8\u30d5\u30a9\u30fc\u30e0\u306e\u958b\u767a\u8005\u306e\u5927\u591a\u6570\u306b\u3068\u3063\u3066\u30d1\u30b9\u30ad\u30fc\u304c\u30d5\u30a1\u30fc\u30b9\u30c8\u30c1\u30e7\u30a4\u30b9\u3068\u306a\u308b\u672a\u6765\u3092\u4e88\u898b\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n<p>\u6700\u5f8c\u306b\u3001\u767b\u9332\u4f53\u9a13\u306e\u6539\u5584\u3068\u30d1\u30b9\u30ad\u30fc\u306e\u5c55\u958b\u306e\u7d50\u679c\u3001<strong>\u30e6\u30fc\u30b6\u30fc\u304c2\u3064\u4ee5\u4e0a\u306e\u5f62\u5f0f\u306e2FA\u3092\u8a2d\u5b9a\u3059\u308b\u53ef\u80fd\u6027\u304c47%\u9ad8\u307e\u3063\u305f<\/strong>\u3068\u3044\u3046\u30c7\u30fc\u30bf\u304c\u3042\u308a\u307e\u3059\u3002\u5404\u8981\u7d20\u3092\u8ffd\u52a0\u3059\u308b\u3053\u3068\u3067\u3001\u30e6\u30fc\u30b6\u30fc\u304c\u3059\u3079\u3066\u306e\u8981\u7d20\u3092\u5931\u3044\u3001\u30ed\u30c3\u30af\u30a2\u30a6\u30c8\u3055\u308c\u308b\u53ef\u80fd\u6027\u304c\u306f\u308b\u304b\u306b\u4f4e\u304f\u306a\u308a\u3001\u3088\u308a\u30b9\u30e0\u30fc\u30ba\u3067\u4fe1\u983c\u6027\u306e\u9ad8\u3044\u30e6\u30fc\u30b6\u30fc\u4f53\u9a13\u304c\u5f97\u3089\u308c\u307e\u3059\u3002<\/p>\n<p><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-4480 size-large\" src=\"https:\/\/blog-github-com-develop.go-vip.co\/jp\/wp-content\/uploads\/sites\/2\/2024\/04\/Users-With-2-2FA-Methods.png?w=1024&#038;resize=1024%2C400\" alt=\"Graph showing the number of users with 2 or more 2FA methods from April 2023 to March 2024. The line began trending rapidly upward in November 2023, becoming almost exponential in early 2024.\" width=\"1024\" height=\"400\" srcset=\"https:\/\/blog-github-com-develop.go-vip.co\/jp\/wp-content\/uploads\/sites\/2\/2024\/04\/Users-With-2-2FA-Methods.png?w=1600 1600w, https:\/\/blog-github-com-develop.go-vip.co\/jp\/wp-content\/uploads\/sites\/2\/2024\/04\/Users-With-2-2FA-Methods.png?w=300 300w, https:\/\/blog-github-com-develop.go-vip.co\/jp\/wp-content\/uploads\/sites\/2\/2024\/04\/Users-With-2-2FA-Methods.png?w=768 768w, https:\/\/blog-github-com-develop.go-vip.co\/jp\/wp-content\/uploads\/sites\/2\/2024\/04\/Users-With-2-2FA-Methods.png?w=1024 1024w, https:\/\/blog-github-com-develop.go-vip.co\/jp\/wp-content\/uploads\/sites\/2\/2024\/04\/Users-With-2-2FA-Methods.png?w=1536 1536w\" sizes=\"auto, (max-width: 1000px) 100vw, 1000px\" \/><\/p>\n<h3 id=\"%e3%83%a6%e3%83%bc%e3%82%b6%e3%83%bc%e4%bd%93%e9%a8%93%e3%81%a8%e3%82%b5%e3%83%9d%e3%83%bc%e3%83%88\">\u30e6\u30fc\u30b6\u30fc\u4f53\u9a13\u3068\u30b5\u30dd\u30fc\u30c8<a href=\"#%e3%83%a6%e3%83%bc%e3%82%b6%e3%83%bc%e4%bd%93%e9%a8%93%e3%81%a8%e3%82%b5%e3%83%9d%e3%83%bc%e3%83%88\" class=\"heading-link\" aria-label=\"\u30e6\u30fc\u30b6\u30fc\u4f53\u9a13\u3068\u30b5\u30dd\u30fc\u30c8\" data-anchorjs-icon=\"#\" style=\"padding-left: 0.375em;\"><\/a><\/h3>\n<p>\u30b7\u30fc\u30e0\u30ec\u30b9\u306a\u30e6\u30fc\u30b6\u30fc\u30a8\u30af\u30b9\u30da\u30ea\u30a8\u30f3\u30b9\u3068\u3044\u3046\u7d04\u675f\u3092\u5b88\u308a\u3064\u3064\u3001\u958b\u767a\u8005\u304c\u5f37\u56fa\u306a\u30a2\u30ab\u30a6\u30f3\u30c8\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u3092\u63a1\u7528\u3067\u304d\u308b\u3088\u3046\u306b\u3059\u308b\u5fc5\u8981\u304c\u3042\u308b\u3068\u8003\u3048\u3001\u79c1\u305f\u3061\u306f 2FA \u30aa\u30f3\u30dc\u30fc\u30c7\u30a3\u30f3\u30b0\u30d5\u30ed\u30fc\u306e\u5237\u65b0\u3001<a href=\"https:\/\/blog-github-com-develop.go-vip.co\/2022-01-25-secure-your-github-account-github-mobile-2fa\/\">GitHub \u30e2\u30d0\u30a4\u30eb\u30a2\u30d7\u30ea\u306e 2FA \u306e\u8ffd\u52a0<\/a>\u3001\u30d7\u30e9\u30a4\u30de\u30ea 2FA \u8981\u7d20\u306e\u30e6\u30fc\u30b6\u30fc\u30aa\u30d7\u30b7\u30e7\u30f3\u306e\u5897\u52a0\u306a\u3069\u3001\u591a\u304f\u306e\u6539\u5584\u306b\u6295\u8cc7\u3057\u307e\u3057\u305f\u3002\u30d7\u30e9\u30c3\u30c8\u30d5\u30a9\u30fc\u30e0\u3067\u306e\u76f8\u5bfe\u7684\u306a\u5229\u7528\u304c\u5897\u3048\u308b\u306b\u3064\u308c\u3066\u30012FA \u95a2\u9023\u306e\u30b5\u30dd\u30fc\u30c8\u30c1\u30b1\u30c3\u30c8\u304c\u5897\u3048\u308b\u3068\u8003\u3048\u308b\u306e\u304c\u59a5\u5f53\u3067\u3057\u3087\u3046\u304c\u3001\u79c1\u305f\u3061\u306f\u305d\u306e\u9006\u3092\u898b\u307e\u3057\u305f\u3002\u5c55\u958b\u306b\u5148\u7acb\u3061\u3001\u30e6\u30fc\u30b6\u30fc\u30a8\u30af\u30b9\u30da\u30ea\u30a8\u30f3\u30b9\u3068\u30c7\u30b6\u30a4\u30f3\u306b\u591a\u5927\u306a\u6295\u8cc7\u3092\u884c\u3063\u305f\u305f\u3081\u3001<strong>2FA\u95a2\u9023\u306e\u30b5\u30dd\u30fc\u30c8\u30c1\u30b1\u30c3\u30c8\u306f3\u5206\u306e1\u306b\u6e1b\u5c11<\/strong>\u3057\u307e\u3057\u305f\u3002<\/p>\n<p>\u3055\u3089\u306b\u3001\u793e\u5185\u306e\u30ef\u30fc\u30af\u30d5\u30ed\u30fc\u3092\u6700\u9069\u5316\u3057\u3001\u30b5\u30dd\u30fc\u30c8\u30fb\u30c1\u30fc\u30e0\u306e\u81ea\u52d5\u5316\u3092\u9032\u3081\u305f\u7d50\u679c\u3001<strong>\u4eba\u7684\u4ecb\u5165\u3092\u5fc5\u8981\u3068\u3059\u308b2FA\u30a2\u30ab\u30a6\u30f3\u30c8\u56de\u5fa9\u306e\u30b5\u30dd\u30fc\u30c8\u30fb\u30c1\u30b1\u30c3\u30c8\u304c54%\u6e1b\u5c11<\/strong>\u3057\u307e\u3057\u305f\u3002\u73fe\u5728\u3001<strong>\u30a2\u30ab\u30a6\u30f3\u30c8\u5fa9\u65e7\u30ea\u30af\u30a8\u30b9\u30c8\u30c1\u30b1\u30c3\u30c8\u306e75%\u4ee5\u4e0a\u306f\u3001\u30d7\u30ed\u30c0\u30af\u30c8\u5185\u306e\u30ef\u30fc\u30af\u30d5\u30ed\u30fc\u304b\u3089\u751f\u3058\u3066\u3044\u307e\u3059\u3002<\/strong>\u3053\u306e\u30ef\u30fc\u30af\u30d5\u30ed\u30fc\u3067\u306f\u3001\u30e6\u30fc\u30b6\u30fc\u304b\u3089\u30ea\u30ab\u30d0\u30ea\u30fc\u306e\u8a73\u7d30\u3092\u53ce\u96c6\u3057\u3001\u30ea\u30b9\u30af\u8981\u56e0\u3084\u3001\u5b89\u5168\u3060\u3068\u308f\u304b\u3063\u3066\u3044\u308b\u30b7\u30ca\u30ea\u30aa\uff08\u30b5\u30a4\u30f3\u30a4\u30f3\u3057\u305f\u307e\u307e\u30a2\u30ab\u30a6\u30f3\u30c8\u30fb\u30ea\u30ab\u30d0\u30ea\u30fc\u3092\u884c\u3046\u306a\u3069\uff09\u3092\u81ea\u52d5\u7684\u306b\u30c1\u30a7\u30c3\u30af\u3057\u307e\u3059\u3002\u3053\u306e\u30c7\u30fc\u30bf\u53ce\u96c6\u3068\u5be9\u67fb\u306b\u3088\u308a\u3001\u30b5\u30dd\u30fc\u30c8\u30c1\u30fc\u30e0\u304c\u3053\u308c\u3089\u306e\u5fa9\u65e7\u306e\u8a66\u307f\u3092\u30ec\u30d3\u30e5\u30fc\u3059\u308b\u6642\u9593\u304c\u5287\u7684\u306b\u77ed\u7e2e\u3055\u308c\u3001\u30ed\u30c3\u30af\u30a2\u30a6\u30c8\u3055\u308c\u305f\u30e6\u30fc\u30b6\u30fc\u304c\u5b89\u5168\u306b\u30a2\u30ab\u30a6\u30f3\u30c8\u306b\u623b\u308b\u3053\u3068\u304c\u3067\u304d\u308b\u3088\u3046\u306b\u306a\u308a\u3001GitHub\u306f2FA\u306e\u767b\u9332\u3092\u6570\u767e\u4e07\u4eba\u306e\u30e6\u30fc\u30b6\u30fc\u306b\u62e1\u5927\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u308b\u3088\u3046\u306b\u306a\u308a\u307e\u3057\u305f\u3002<\/p>\n<p><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-4479 size-large\" src=\"https:\/\/blog-github-com-develop.go-vip.co\/jp\/wp-content\/uploads\/sites\/2\/2024\/04\/2FA-Account-recovery-tickets.png?w=1024&#038;resize=1024%2C400\" alt=\"Graph comparing 2FA account recovery tickets with tickets involving automated review from May 2023 to March 2024. The line representing automated review surpassed the line representing account recovery tickets around October 2023 and has stayed there ever since. \" width=\"1024\" height=\"400\" srcset=\"https:\/\/blog-github-com-develop.go-vip.co\/jp\/wp-content\/uploads\/sites\/2\/2024\/04\/2FA-Account-recovery-tickets.png?w=1600 1600w, https:\/\/blog-github-com-develop.go-vip.co\/jp\/wp-content\/uploads\/sites\/2\/2024\/04\/2FA-Account-recovery-tickets.png?w=300 300w, https:\/\/blog-github-com-develop.go-vip.co\/jp\/wp-content\/uploads\/sites\/2\/2024\/04\/2FA-Account-recovery-tickets.png?w=768 768w, https:\/\/blog-github-com-develop.go-vip.co\/jp\/wp-content\/uploads\/sites\/2\/2024\/04\/2FA-Account-recovery-tickets.png?w=1024 1024w, https:\/\/blog-github-com-develop.go-vip.co\/jp\/wp-content\/uploads\/sites\/2\/2024\/04\/2FA-Account-recovery-tickets.png?w=1536 1536w\" sizes=\"auto, (max-width: 1000px) 100vw, 1000px\" \/><\/p>\n<p>\u307e\u305f\u3001\u30e6\u30fc\u30b6\u30fc\u304c\u81ea\u5206\u306e\u8a2d\u5b9a\u3092\u78ba\u8a8d\u3067\u304d\u308b\u3088\u3046\u306b\u30012FA\u306e\u8a2d\u5b9a\u304b\u308928\u65e5\u5f8c\u306b\u884c\u308f\u308c\u308b<a href=\"https:\/\/blog-github-com-develop.go-vip.co\/changelog\/2023-01-11-second-factor-validation-after-2fa-setup\" target=\"_blank\" rel=\"noopener\">2FA\u78ba\u8a8d\u306e\u30c1\u30a7\u30c3\u30af\u30a2\u30c3\u30d7<\/a>\u3082\u5c0e\u5165\u3057\u307e\u3057\u305f\u3002\u3053\u306e\u30c1\u30a7\u30c3\u30af\u30a2\u30c3\u30d7\u306f\u30d5\u30a7\u30a4\u30eb\u30bb\u30fc\u30d5\u3067\u3042\u308a\u3001<strong>25%\u306e\u30e6\u30fc\u30b6\u30fc\u304c\u8a2d\u5b9a\u30df\u30b9\u3084\u30d5\u30a1\u30af\u30bf\u30fc\u7d1b\u5931\u306e\u969b\u306b\u30a2\u30ab\u30a6\u30f3\u30c8\u306e\u518d\u8a2d\u5b9a\u3092\u6210\u529f\u3055\u305b<\/strong>\u3001\u30e6\u30fc\u30b6\u30fc\u306e\u30a2\u30ab\u30a6\u30f3\u30c8\u30ed\u30c3\u30af\u30a2\u30a6\u30c8\u3092\u56de\u907f\u3057\u3001GitHub \u306e\u30a2\u30ab\u30a6\u30f3\u30c8\u5fa9\u65e7\u30b5\u30dd\u30fc\u30c8\u91cf\u3092\u5927\u5e45\u306b\u524a\u6e1b\u3057\u307e\u3057\u305f\u3002<\/p>\n<p><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-4483 size-large\" src=\"https:\/\/blog-github-com-develop.go-vip.co\/jp\/wp-content\/uploads\/sites\/2\/2024\/04\/Verify-your-two-factor-authentication-settings.png?w=1024&#038;resize=1024%2C400\" alt=\"Screenshot of the dialog box prompting a user to verify their 2FA settings.\" width=\"1024\" height=\"400\" srcset=\"https:\/\/blog-github-com-develop.go-vip.co\/jp\/wp-content\/uploads\/sites\/2\/2024\/04\/Verify-your-two-factor-authentication-settings.png?w=1600 1600w, https:\/\/blog-github-com-develop.go-vip.co\/jp\/wp-content\/uploads\/sites\/2\/2024\/04\/Verify-your-two-factor-authentication-settings.png?w=300 300w, https:\/\/blog-github-com-develop.go-vip.co\/jp\/wp-content\/uploads\/sites\/2\/2024\/04\/Verify-your-two-factor-authentication-settings.png?w=768 768w, https:\/\/blog-github-com-develop.go-vip.co\/jp\/wp-content\/uploads\/sites\/2\/2024\/04\/Verify-your-two-factor-authentication-settings.png?w=1024 1024w, https:\/\/blog-github-com-develop.go-vip.co\/jp\/wp-content\/uploads\/sites\/2\/2024\/04\/Verify-your-two-factor-authentication-settings.png?w=1536 1536w\" sizes=\"auto, (max-width: 1000px) 100vw, 1000px\" \/><\/p>\n<h3 id=\"%e3%82%a8%e3%82%b3%e3%82%b7%e3%82%b9%e3%83%86%e3%83%a0%e3%81%b8%e3%81%ae%e5%bd%b1%e9%9f%bf\">\u30a8\u30b3\u30b7\u30b9\u30c6\u30e0\u3078\u306e\u5f71\u97ff<a href=\"#%e3%82%a8%e3%82%b3%e3%82%b7%e3%82%b9%e3%83%86%e3%83%a0%e3%81%b8%e3%81%ae%e5%bd%b1%e9%9f%bf\" class=\"heading-link\" aria-label=\"\u30a8\u30b3\u30b7\u30b9\u30c6\u30e0\u3078\u306e\u5f71\u97ff\" data-anchorjs-icon=\"#\" style=\"padding-left: 0.375em;\"><\/a><\/h3>\n<p>\u79c1\u305f\u3061\u306f\u3001GitHub.com\u4e0a\u306e\u958b\u767a\u8005\u306e\u5b89\u5168\u3092\u5b88\u308b\u3053\u3068\u3092\u7b2c\u4e00\u306b\u8003\u3048\u3066\u3044\u307e\u3057\u305f\u304c\u3001GitHub\u3068<a href=\"https:\/\/blog-github-com-develop.go-vip.co\/2022-02-01-top-100-npm-package-maintainers-require-2fa-additional-security\/\" target=\"_blank\" rel=\"noopener\">npm<\/a>\u304c\u72ec\u81ea\u306e2FA\u5fc5\u9808\u8981\u4ef6\u3092\u8a2d\u5b9a\u3057\u305f\u5f8c\u3001\u3088\u308a\u591a\u304f\u306e\u7d44\u7e54\u304c\u3053\u306e\u547c\u3073\u304b\u3051\u306b\u5fdc\u3058\u308b\u3053\u3068\u3092\u76ee\u6a19\u306b\u3001\u5c55\u958b\u306e\u30a2\u30d7\u30ed\u30fc\u30c1\u3092\u610f\u56f3\u7684\u306b\u900f\u660e\u5316\u3057\u307e\u3057\u305f\u30022FA\u304c\u6b63\u5e38\u306b\u6709\u52b9\u5316\u3055\u308c\u305f\u30e6\u30fc\u30b6\u30fc\u30a2\u30ab\u30a6\u30f3\u30c8\u306f\u3059\u3079\u3066\u3001\u653b\u6483\u8005\u304c\u7d44\u7e54\u3084\u91cd\u8981\u306a\u30aa\u30fc\u30d7\u30f3\u30bd\u30fc\u30b9\u30bd\u30d5\u30c8\u30a6\u30a7\u30a2\u3092\u4fb5\u5bb3\u3059\u308b\u30d9\u30af\u30c8\u30eb\u30921\u3064\u6e1b\u3089\u3059\u3053\u3068\u306b\u306a\u308a\u307e\u3059\u3002\u3053\u306e2\u5e74\u9593\u3067\u3001<strong><a href=\"https:\/\/blog.rubygems.org\/2022\/06\/13\/making-packages-more-secure.html\" target=\"_blank\" rel=\"noopener\">RubyGems<\/a>\u3001<a href=\"https:\/\/blog.pypi.org\/posts\/2023-05-25-securing-pypi-with-2fa\/\" target=\"_blank\" rel=\"noopener\">PyPI<\/a>\u3001<a href=\"https:\/\/aws.amazon.com\/blogs\/security\/security-by-design-aws-to-enhance-mfa-requirements-in-2024\/\" target=\"_blank\" rel=\"noopener\">AWS<\/a>\u304c\u3001\u79c1\u305f\u3061\u306e\u5171\u6709\u30a8\u30b3\u30b7\u30b9\u30c6\u30e0\u3068\u30bd\u30d5\u30c8\u30a6\u30a7\u30a2\u30b5\u30d7\u30e9\u30a4\u30c1\u30a7\u30fc\u30f3\u3092\u30bb\u30ad\u30e5\u30a2\u306b\u3059\u308b\u305f\u3081\u306b\u30012FA\u306e\u5229\u7528\u62e1\u5927\u3092\u63a8\u9032\u3059\u308b\u53d6\u308a\u7d44\u307f\u306b\u53c2\u52a0\u3057\u3066\u304f\u308c\u305f\u3053\u3068<\/strong>\u306f\u3001\u79c1\u305f\u3061\u306b\u3068\u3063\u3066\u52b1\u307f\u306b\u306a\u308a\u307e\u3057\u305f\u3002<\/p>\n<h2 id=\"%e4%bb%8a%e5%be%8c%e3%81%ab%e5%90%91%e3%81%91%e3%81%a6-%f0%9f%94%ad\">\u4eca\u5f8c\u306b\u5411\u3051\u3066 \ud83d\udd2d<a href=\"#%e4%bb%8a%e5%be%8c%e3%81%ab%e5%90%91%e3%81%91%e3%81%a6-%f0%9f%94%ad\" class=\"heading-link\" aria-label=\"\u4eca\u5f8c\u306b\u5411\u3051\u3066 \ud83d\udd2d\" data-anchorjs-icon=\"#\" style=\"padding-left: 0.375em;\"><\/a><\/h2>\n<p>2024\u5e74\u306e\u4eca\u3001\u3042\u306a\u305f\u306f &#8220;\u306a\u305c\u79c1\u306f2FA\u306e\u5fc5\u9808\u8981\u4ef6\u3092\u5f97\u3089\u308c\u306a\u304b\u3063\u305f\u306e\u304b\uff1f&#8221;\u3068\u601d\u3063\u3066\u3044\u308b\u304b\u3082\u3057\u308c\u307e\u305b\u3093\u3002\u4f55\u767e\u4e07\u4eba\u3082\u306e\u958b\u767a\u8005\u30922FA\u306b\u767b\u9332\u3059\u308b\u305f\u3081\u306b2023\u5e74\u306b\u884c\u3063\u305f\u9032\u5c55\u306b\u79c1\u305f\u3061\u306f\u5b09\u3057\u304f\u601d\u3063\u3066\u3044\u307e\u3059\u304c\u3001\u30bd\u30d5\u30c8\u30a6\u30a7\u30a2\u30b5\u30d7\u30e9\u30a4\u30c1\u30a7\u30fc\u30f3\u3068\u305d\u308c\u3092\u62c5\u5f53\u3059\u308b\u958b\u767a\u8005\u306e\u5b89\u5168\u3092\u5b88\u308b\u4ed5\u4e8b\u306f\u7d42\u308f\u308a\u307e\u305b\u3093\u3002\u79c1\u305f\u3061\u306e\u521d\u671f\u4f5c\u696d\u3067\u306f\u3001\u30e6\u30fc\u30b6\u30fc\u6a29\u9650\u3084\u5177\u4f53\u7684\u306a\u884c\u52d5\u306e\u5f71\u97ff\u306b\u57fa\u3065\u3044\u3066\u3001<a href=\"https:\/\/docs.github.com\/ja\/authentication\/securing-your-account-with-two-factor-authentication-2fa\/about-mandatory-two-factor-authentication\" target=\"_blank\" rel=\"noopener\">\u500b\u5225\u306e\u30e6\u30fc\u30b6\u30fc\u30fb\u30b0\u30eb\u30fc\u30d7\u306b\u512a\u5148\u9806\u4f4d<\/a>\u3092\u3064\u3051\u307e\u3057\u305f\u3002<\/p>\n<p>\u307e\u305f\u30012FA\u3092\u63a1\u7528\u3059\u308b\u305f\u3081\u306b\u3001\u643a\u5e2f\u96fb\u8a71\u306b\u30a2\u30af\u30bb\u30b9\u3067\u304d\u306a\u304b\u3063\u305f\u308a\u3001\u4f7f\u7528\u3059\u308b\u30b3\u30f3\u30d4\u30e5\u30fc\u30bf\u306e\u30bd\u30d5\u30c8\u30a6\u30a7\u30a2\u3092\u5236\u5fa1\u3067\u304d\u306a\u304b\u3063\u305f\u308a\u3059\u308b\u30e6\u30fc\u30b6\u30fc\u3092\u30b5\u30dd\u30fc\u30c8\u3059\u308b\u305f\u3081\u306e\u3001\u696d\u754c\u5168\u4f53\u306e\u91cd\u8981\u306a\u4f5c\u696d\u3082\u307e\u3060\u6b8b\u3063\u3066\u3044\u307e\u3059\u3002\u30b0\u30ed\u30fc\u30d0\u30eb\u30fb\u30d7\u30e9\u30c3\u30c8\u30d5\u30a9\u30fc\u30e0\u3068\u3057\u3066\u3001\u79c1\u305f\u3061\u306f\u8ab0\u3082\u304c\u30bd\u30d5\u30c8\u30a6\u30a7\u30a2\u958b\u767a\u3092\u3088\u308a\u7c21\u5358\u3067\u30bb\u30ad\u30e5\u30a2\u306a\u3082\u306e\u306b\u3059\u308b\u30c4\u30fc\u30eb\u306b\u30a2\u30af\u30bb\u30b9\u3067\u304d\u308b\u3079\u304d\u3060\u3068\u8003\u3048\u3066\u304a\u308a\u3001\u958b\u767a\u8005\u306b\u5f37\u529b\u306a\u8a8d\u8a3c\u3092\u5c0e\u5165\u3059\u308b\u305f\u3081\u306e\u53d6\u308a\u7d44\u307f\u3082\u7d99\u7d9a\u4e2d\u3067\u3059\u3002\u79c1\u305f\u3061\u306f\u3001\u958b\u767a\u8005\u3001\u5f7c\u3089\u304c\u53d6\u308a\u7d44\u3093\u3067\u3044\u308b\u30d7\u30ed\u30b8\u30a7\u30af\u30c8\u3001\u5f7c\u3089\u304c\u53c2\u52a0\u3057\u3066\u3044\u308b\u30b3\u30df\u30e5\u30cb\u30c6\u30a3\u3092\u4fdd\u8b77\u3059\u308b\u305f\u3081\u306e\u30bd\u30ea\u30e5\u30fc\u30b7\u30e7\u30f3\u3092\u898b\u3064\u3051\u7d9a\u3051\u3001\u4e16\u754c\u4e2d\u306e\u7570\u306a\u308b\u30bb\u30c3\u30c8\u30a2\u30c3\u30d7\u3084\u74b0\u5883\u3092\u6301\u3064\u4eba\u3005\u3092\u5236\u9650\u3059\u308b\u3053\u3068\u306a\u304f\u3001\u30bd\u30d5\u30c8\u30a6\u30a7\u30a2\u30b5\u30d7\u30e9\u30a4\u30c1\u30a7\u30fc\u30f3\u5168\u4f53\u306e\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u3092\u5927\u5e45\u306b\u5411\u4e0a\u3055\u305b\u308b\u30d0\u30e9\u30f3\u30b9\u306e\u53d6\u308c\u305f\u30a2\u30d7\u30ed\u30fc\u30c1\u3092\u53d6\u308b\u3088\u3046\u52aa\u529b\u3057\u3066\u3044\u304d\u307e\u3059\u3002<\/p>\n<aside>\n<h4 id=\"2fa%e7%84%a1%e3%81%97%e3%81%a7%e3%82%a2%e3%82%ab%e3%82%a6%e3%83%b3%e3%83%88%e3%82%92%e4%bf%9d%e8%ad%b7%e3%81%99%e3%82%8b\">2FA\u7121\u3057\u3067\u30a2\u30ab\u30a6\u30f3\u30c8\u3092\u4fdd\u8b77\u3059\u308b<a href=\"#2fa%e7%84%a1%e3%81%97%e3%81%a7%e3%82%a2%e3%82%ab%e3%82%a6%e3%83%b3%e3%83%88%e3%82%92%e4%bf%9d%e8%ad%b7%e3%81%99%e3%82%8b\" class=\"heading-link\" aria-label=\"2FA\u7121\u3057\u3067\u30a2\u30ab\u30a6\u30f3\u30c8\u3092\u4fdd\u8b77\u3059\u308b\" data-anchorjs-icon=\"#\" style=\"padding-left: 0.375em;\"><\/a><\/h4>\n<p>2FA\u306e\u6709\u52b9\u5316\u304c\u7fa9\u52d9\u4ed8\u3051\u3089\u308c\u3066\u3044\u306a\u3044\u5834\u5408\u3067\u3082\u3001<a href=\"https:\/\/blog-github-com-develop.go-vip.co\/changelog\/2019-07-01-verified-devices\/\"><span style=\"font-weight: 400;\">\u8a8d\u8a3c\u6e08\u307f\u30c7\u30d0\u30a4\u30b9<\/span><\/a><span style=\"font-weight: 400;\">\u3084<\/span><a href=\"https:\/\/blog-github-com-develop.go-vip.co\/changelog\/2018-07-31-new-improvements-and-best-practices-for-account-security-and-recoverability\/\"><span style=\"font-weight: 400;\">\u30d1\u30b9\u30ef\u30fc\u30c9\u6f0f\u6d29\u9632\u6b62<\/span><\/a><span style=\"font-weight: 400;\">\u306a\u3069\u306e\u8907\u5c64\u7684\u306a\u4fdd\u8b77\u3092\u884c\u3046\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/span><\/p>\n<\/aside>\n<p>\u4eca\u5f8c\u306b\u3064\u3044\u3066\u306f\u3001\u30e6\u30fc\u30b6\u30fc\u30a8\u30af\u30b9\u30da\u30ea\u30a8\u30f3\u30b9\u306e\u7d99\u7d9a\u7684\u306a\u76e3\u8996\u3068\u6539\u5584\u3092\u884c\u3044\u306a\u304c\u3089\u30012024\u5e74\u4e2d\u306b\u3055\u3089\u306b\u591a\u304f\u306eGitHub.com\u30e6\u30fc\u30b6\u30fc\u306b2FA\u3078\u306e\u767b\u9332\u3092\u5fc5\u9808\u8981\u4ef6\u3068\u3059\u308b\u65b9\u6cd5\u3092\u8a55\u4fa1\u4e2d\u3067\u3059\u3002\u79c1\u305f\u3061\u306f\u3001\u30bb\u30c3\u30b7\u30e7\u30f3\u3084\u30c8\u30fc\u30af\u30f3\u306e\u30d0\u30a4\u30f3\u30c7\u30a3\u30f3\u30b0\u306a\u3069\u30012FA\u306e\u6709\u7121\u306b\u304b\u304b\u308f\u3089\u305a\u3001\u958b\u767a\u8005\u3068\u305d\u306e\u7d44\u7e54\u304c\u30a2\u30ab\u30a6\u30f3\u30c8\u6f0f\u6d29\u306e\u30ea\u30b9\u30af\u3092\u3088\u308a\u9069\u5207\u306b\u7ba1\u7406\u3067\u304d\u308b\u3088\u3046\u306a\u3001\u8ffd\u52a0\u306e\u30a2\u30ab\u30a6\u30f3\u30c8\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u6a5f\u80fd\u3092\u8abf\u67fb\u3057\u3066\u3044\u307e\u3059\u3002\u307e\u305f\u3001\u30d1\u30b9\u30ad\u30fc\u3084\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u30ad\u30fc\u306e\u3088\u3046\u306a\u3001\u30d7\u30e9\u30c3\u30c8\u30d5\u30a9\u30fc\u30e0\u4e0a\u3067\u958b\u767a\u8005\u304c\u5229\u7528\u3067\u304d\u308b\u6700\u3082\u30bb\u30ad\u30e5\u30a2\u306a\u8981\u7d20\u306e\u63a1\u7528\u3092\u5f15\u304d\u7d9a\u304d\u63a8\u9032\u3057\u3001\u958b\u767a\u8005\u304c\u3088\u308a\u30bb\u30ad\u30e5\u30a2\u306a\u8a8d\u8a3c\u30bf\u30a4\u30d7\u306b\u300c\u30b9\u30c6\u30c3\u30d7\u30a2\u30c3\u30d7\u300d\u3059\u308b\u306e\u3092\u652f\u63f4\u3057\u305f\u3044\u3068\u8003\u3048\u3066\u3044\u307e\u3059\u3002\u3053\u308c\u3089\u306e\u53d6\u308a\u7d44\u307f\u306e<a 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