{"id":9558,"date":"2025-01-14T21:00:49","date_gmt":"2025-01-14T12:00:49","guid":{"rendered":"https:\/\/m365jp.net\/?p=9558"},"modified":"2025-01-14T21:06:01","modified_gmt":"2025-01-14T12:06:01","slug":"servicerestored-op978247-microsoft-365-apps-multi-factor-authentication-mfa-may-have-prevented-users-from-accessing-some-microsoft-365-m365-apps-2","status":"publish","type":"post","link":"https:\/\/m365jp.net\/index.php\/2025-01-14-servicerestored-op978247-microsoft-365-apps-multi-factor-authentication-mfa-may-have-prevented-users-from-accessing-some-microsoft-365-m365-apps-2","title":{"rendered":"[serviceRestored] OP978247 | Microsoft 365 apps | Multi-Factor Authentication (MFA) may have prevented users from accessing some Microsoft 365 (M365) Apps"},"content":{"rendered":"
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OP978247 | Microsoft 365 apps | Multi-Factor Authentication (MFA) may have prevented users from accessing some Microsoft 365 (M365) Apps<\/th>\n<\/tr>\n<\/tbody>\n<\/table>\n
\n\n\n\n\n\n\n\n\n\n\n
Status<\/th>\nserviceRestored<\/td>\n<\/tr>\n
Classification<\/th>\nincident<\/td>\n<\/tr>\n
User Impact<\/th>\nUsers may have been unable to access some Microsoft 365 Apps when authenticating with MFA<\/td>\n<\/tr>\n
Last Updated<\/th>\n01\/14\/2025 11:09:31<\/td>\n<\/tr>\n
Start Time<\/th>\n01\/13\/2025 07:38:00<\/td>\n<\/tr>\n
End Time<\/th>\n01\/13\/2025 09:43:00<\/td>\n<\/tr>\n
Latest Message<\/th>\nTitle: Multi-Factor Authentication (MFA) may have prevented users from accessing some Microsoft 365 (M365) Apps<\/p>\n

User impact: Users may have been unable to access some Microsoft 365 Apps when authenticating with MFA<\/p>\n

Final status: We\u2019ve identified that a section of infrastructure responsible for MFA operations unexpectedly became unresponsive. We\u2019ve completed an extended period of monitoring in which the service health has remained stable and are declaring this incident as resolved.
Scope of impact: Impact was specific to users are authenticating to our M365 Apps using MFA via infrastructure in Western Europe.<\/p>\n

Start time: Monday, January 13, 2025, at 7:38 AM UTC<\/p>\n

End time: Monday, January 13, 2025, at 9:43 AM UTC<\/p>\n

Root Cause: A section of infrastructure responsible for MFA operations unexpectedly became unresponsive.<\/p>\n

Next steps:
– We’re analyzing performance data and trends on the affected infrastructure to help prevent this problem from happening again.<\/p>\n

We’ll provide a preliminary Post-Incident Report within two business days and a final Post-Incident Report within five business days.<\/td>\n<\/tr>\n

Machine Translation<\/th>\n\u30bf\u30a4\u30c8\u30eb: Multi-Factor Authentication (MFA) \u304c\u539f\u56e0\u3067\u3001\u4e00\u90e8\u306e Microsoft 365 (M365) \u30a2\u30d7\u30ea\u306b\u30a2\u30af\u30bb\u30b9\u3067\u304d\u306a\u304f\u306a\u3063\u305f\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059<\/p>\n

\u30e6\u30fc\u30b6\u30fc\u3078\u306e\u5f71\u97ff: MFA \u3067\u306e\u8a8d\u8a3c\u6642\u306b\u3001\u30e6\u30fc\u30b6\u30fc\u304c\u4e00\u90e8\u306e Microsoft 365 Apps \u306b\u30a2\u30af\u30bb\u30b9\u3067\u304d\u306a\u3044\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059<\/p>\n

\u6700\u7d42\u7684\u306a\u30b9\u30c6\u30fc\u30bf\u30b9: MFA \u904b\u7528\u3092\u62c5\u5f53\u3059\u308b\u30a4\u30f3\u30d5\u30e9\u30b9\u30c8\u30e9\u30af\u30c1\u30e3\u306e\u30bb\u30af\u30b7\u30e7\u30f3\u304c\u4e88\u671f\u305b\u305a\u5fdc\u7b54\u3057\u306a\u304f\u306a\u3063\u305f\u3053\u3068\u3092\u78ba\u8a8d\u3057\u307e\u3057\u305f\u3002\u30b5\u30fc\u30d3\u30b9\u306e\u6b63\u5e38\u6027\u304c\u5b89\u5b9a\u3057\u305f\u307e\u307e\u3067\u3042\u308b\u9577\u671f\u9593\u306e\u76e3\u8996\u3092\u5b8c\u4e86\u3057\u3001\u3053\u306e\u30a4\u30f3\u30b7\u30c7\u30f3\u30c8\u304c\u89e3\u6c7a\u3055\u308c\u305f\u3053\u3068\u3092\u5ba3\u8a00\u3057\u3066\u3044\u307e\u3059\u3002
\u5f71\u97ff\u7bc4\u56f2: \u5f71\u97ff\u306f\u3001\u897f\u30e8\u30fc\u30ed\u30c3\u30d1\u306e\u30a4\u30f3\u30d5\u30e9\u30b9\u30c8\u30e9\u30af\u30c1\u30e3\u3092\u4ecb\u3057\u3066 MFA \u3092\u4f7f\u7528\u3057\u3066 M365 \u30a2\u30d7\u30ea\u306b\u8a8d\u8a3c\u3057\u3066\u3044\u308b\u30e6\u30fc\u30b6\u30fc\u306b\u7279\u6709\u306e\u3082\u306e\u3067\u3057\u305f\u3002<\/p>\n

\u958b\u59cb\u6642\u9593: 2025 \u5e74 1 \u6708 13 \u65e5\u6708\u66dc\u65e5\u306e\u5348\u524d 7 \u6642 38 \u5206 (UTC)<\/p>\n

\u7d42\u4e86\u6642\u523b: 2025 \u5e74 1 \u6708 13 \u65e5\u6708\u66dc\u65e5\u306e\u5348\u524d 9 \u6642 43 \u5206 (UTC)<\/p>\n

\u6839\u672c\u539f\u56e0: MFA \u64cd\u4f5c\u3092\u62c5\u5f53\u3059\u308b\u30a4\u30f3\u30d5\u30e9\u30b9\u30c8\u30e9\u30af\u30c1\u30e3\u306e\u30bb\u30af\u30b7\u30e7\u30f3\u304c\u4e88\u671f\u305b\u305a\u5fdc\u7b54\u3057\u306a\u304f\u306a\u308a\u307e\u3057\u305f\u3002<\/p>\n

\u6b21\u306e\u30b9\u30c6\u30c3\u30d7:
– Microsoft \u3067\u306f\u3001\u3053\u306e\u554f\u984c\u306e\u518d\u767a\u3092\u9632\u3050\u305f\u3081\u306b\u3001\u5f71\u97ff\u3092\u53d7\u3051\u305f\u30a4\u30f3\u30d5\u30e9\u30b9\u30c8\u30e9\u30af\u30c1\u30e3\u306e\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9 \u30c7\u30fc\u30bf\u3068\u50be\u5411\u3092\u5206\u6790\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n

\u30a4\u30f3\u30b7\u30c7\u30f3\u30c8\u4e8b\u5f8c\u30ec\u30dd\u30fc\u30c8\u306e\u4e88\u5099\u7248\u306f2\u55b6\u696d\u65e5\u4ee5\u5185\u306b\u3001\u6700\u7d42\u7684\u306a\u4e8b\u5f8c\u5831\u544a\u66f8\u306f5\u55b6\u696d\u65e5\u4ee5\u5185\u306b\u63d0\u51fa\u3057\u307e\u3059\u3002<\/td>\n<\/tr>\n<\/tbody>\n<\/table><\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"

OP978247 | Microsoft 365 apps | Multi-Factor Authentication (MFA) may have prevented users from accessing some […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-9558","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"_links":{"self":[{"href":"https:\/\/m365jp.net\/index.php\/wp-json\/wp\/v2\/posts\/9558","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/m365jp.net\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/m365jp.net\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/m365jp.net\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/m365jp.net\/index.php\/wp-json\/wp\/v2\/comments?post=9558"}],"version-history":[{"count":0,"href":"https:\/\/m365jp.net\/index.php\/wp-json\/wp\/v2\/posts\/9558\/revisions"}],"wp:attachment":[{"href":"https:\/\/m365jp.net\/index.php\/wp-json\/wp\/v2\/media?parent=9558"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/m365jp.net\/index.php\/wp-json\/wp\/v2\/categories?post=9558"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/m365jp.net\/index.php\/wp-json\/wp\/v2\/tags?post=9558"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}