{"id":11416,"date":"2025-05-05T07:00:54","date_gmt":"2025-05-04T22:00:54","guid":{"rendered":"https:\/\/m365jp.net\/?p=11416"},"modified":"2025-05-05T07:05:31","modified_gmt":"2025-05-04T22:05:31","slug":"servicedegradation-ex1067552-exchange-online-some-users-may-have-potential-phishing-email-messages-sent-to-their-junk-folder-in-exchange-online-instead-of-quarantine","status":"publish","type":"post","link":"https:\/\/m365jp.net\/index.php\/2025-05-05-servicedegradation-ex1067552-exchange-online-some-users-may-have-potential-phishing-email-messages-sent-to-their-junk-folder-in-exchange-online-instead-of-quarantine","title":{"rendered":"[serviceDegradation] EX1067552 | Exchange Online | Some users may have potential phishing email messages sent to their Junk folder in Exchange Online instead of quarantine"},"content":{"rendered":"
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EX1067552 | Exchange Online | Some users may have potential phishing email messages sent to their Junk folder in Exchange Online instead of quarantine<\/th>\n<\/tr>\n<\/tbody>\n<\/table>\n
\n\n\n\n\n\n\n\n\n\n\n
Status<\/th>\nserviceDegradation<\/td>\n<\/tr>\n
Classification<\/th>\nadvisory<\/td>\n<\/tr>\n
User Impact<\/th>\nUsers may have potential phishing email messages sent to their Junk folder in Exchange Online instead of quarantine.<\/td>\n<\/tr>\n
Last Updated<\/th>\n05\/04\/2025 21:40:58<\/td>\n<\/tr>\n
Start Time<\/th>\n05\/04\/2025 15:16:00<\/td>\n<\/tr>\n
End Time<\/th>\n<\/td>\n<\/tr>\n
Latest Message<\/th>\nTitle: Some users may have potential phishing email messages sent to their Junk folder in Exchange Online instead of quarantine<\/p>\n

User impact: Users may have potential phishing email messages sent to their Junk folder in Exchange Online instead of quarantine.<\/p>\n

Current status: The deployment of our corrected model is taking longer than anticipated and is currently at 80 percent saturation. We\u2019re evaluating what actions we can take to expedite the remainder of our deployment, and we aim to provide an updated timeline to mitigation as one becomes available.<\/p>\n

Scope of impact: Some users whose email messages are processed through the offending ML model may have potential phishing email messages sent to their Junk folder in Exchange Online instead of quarantine.<\/p>\n

Start time: Sunday, May 4, 2025, at 3:16 PM UTC<\/p>\n

Root cause: A configuration issue with our Machine Learning (ML) classification model may be causing some potential phishing email messages to be sent to the Junk folder instead of being quarantined.<\/p>\n

Next update by: Monday, May 5, 2025, at 1:00 AM UTC<\/td>\n<\/tr>\n

Machine Translation<\/th>\n\u30bf\u30a4\u30c8\u30eb: \u4e00\u90e8\u306e\u30e6\u30fc\u30b6\u30fc\u306f\u3001\u691c\u75ab\u3067\u306f\u306a\u304f Exchange Online \u306e\u8ff7\u60d1\u30e1\u30fc\u30eb \u30d5\u30a9\u30eb\u30c0\u30fc\u306b\u30d5\u30a3\u30c3\u30b7\u30f3\u30b0\u8a50\u6b3a\u306e\u53ef\u80fd\u6027\u304c\u3042\u308b\u30e1\u30fc\u30eb \u30e1\u30c3\u30bb\u30fc\u30b8\u3092\u9001\u4fe1\u3057\u3066\u3044\u308b\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059<\/p>\n

\u30e6\u30fc\u30b6\u30fc\u3078\u306e\u5f71\u97ff: \u30e6\u30fc\u30b6\u30fc\u306f\u3001\u691c\u75ab\u3067\u306f\u306a\u304f\u3001Exchange Online\u306e\u8ff7\u60d1\u30e1\u30fc\u30eb \u30d5\u30a9\u30eb\u30c0\u30fc\u306b\u30d5\u30a3\u30c3\u30b7\u30f3\u30b0 \u30e1\u30fc\u30eb \u30e1\u30c3\u30bb\u30fc\u30b8\u304c\u9001\u4fe1\u3055\u308c\u308b\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n

\u73fe\u5728\u306e\u30b9\u30c6\u30fc\u30bf\u30b9: \u4fee\u6b63\u3055\u308c\u305f\u30e2\u30c7\u30eb\u306e\u30c7\u30d7\u30ed\u30a4\u306b\u306f\u4e88\u60f3\u4ee5\u4e0a\u306b\u6642\u9593\u304c\u304b\u304b\u308a\u3001\u73fe\u5728 80% \u306e\u98fd\u548c\u72b6\u614b\u306b\u3042\u308a\u307e\u3059\u3002\u79c1\u305f\u3061\u306f\u3001\u6b8b\u308a\u306e\u30c7\u30d7\u30ed\u30a4\u30e1\u30f3\u30c8\u3092\u8fc5\u901f\u306b\u9032\u3081\u308b\u305f\u3081\u306b\u3069\u306e\u3088\u3046\u306a\u884c\u52d5\u3092\u53d6\u308b\u3053\u3068\u304c\u3067\u304d\u308b\u304b\u3092\u8a55\u4fa1\u3057\u3066\u304a\u308a\u3001\u7de9\u548c\u7b56\u304c\u5229\u7528\u53ef\u80fd\u306b\u306a\u3063\u305f\u3068\u304d\u306b\u306f\u3001\u6700\u65b0\u306e\u30bf\u30a4\u30e0\u30e9\u30a4\u30f3\u3092\u63d0\u4f9b\u3059\u308b\u3053\u3068\u3092\u76ee\u6307\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n

\u5f71\u97ff\u7bc4\u56f2: \u554f\u984c\u306e\u3042\u308b ML \u30e2\u30c7\u30eb\u3092\u901a\u3058\u3066\u96fb\u5b50\u30e1\u30fc\u30eb \u30e1\u30c3\u30bb\u30fc\u30b8\u304c\u51e6\u7406\u3055\u308c\u308b\u4e00\u90e8\u306e\u30e6\u30fc\u30b6\u30fc\u306f\u3001\u691c\u75ab\u3067\u306f\u306a\u304f Exchange Online \u306e\u8ff7\u60d1\u30e1\u30fc\u30eb \u30d5\u30a9\u30eb\u30c0\u30fc\u306b\u30d5\u30a3\u30c3\u30b7\u30f3\u30b0 \u30e1\u30c3\u30bb\u30fc\u30b8\u304c\u9001\u4fe1\u3055\u308c\u308b\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n

\u958b\u59cb\u6642\u9593: 2025 \u5e74 5 \u6708 4 \u65e5\u65e5\u66dc\u65e5\u306e\u5348\u5f8c 3 \u6642 16 \u5206 (UTC)<\/p>\n

\u6839\u672c\u539f\u56e0: \u6a5f\u68b0\u5b66\u7fd2 (ML) \u5206\u985e\u30e2\u30c7\u30eb\u306e\u69cb\u6210\u306e\u554f\u984c\u306b\u3088\u308a\u3001\u30d5\u30a3\u30c3\u30b7\u30f3\u30b0\u306e\u53ef\u80fd\u6027\u306e\u3042\u308b\u30e1\u30fc\u30eb \u30e1\u30c3\u30bb\u30fc\u30b8\u304c\u691c\u75ab\u3055\u308c\u305a\u306b\u8ff7\u60d1\u30e1\u30fc\u30eb \u30d5\u30a9\u30eb\u30c0\u30fc\u306b\u9001\u4fe1\u3055\u308c\u308b\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n

\u6b21\u306e\u66f4\u65b0: 2025\u5e745\u67085\u65e5(\u6708)\u5348\u524d1:00(UTC)<\/td>\n<\/tr>\n<\/tbody>\n<\/table><\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"

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