{"id":12825,"date":"2025-09-11T21:01:11","date_gmt":"2025-09-11T12:01:11","guid":{"rendered":"https:\/\/m365jp.net\/?p=12825"},"modified":"2025-09-11T21:02:51","modified_gmt":"2025-09-11T12:02:51","slug":"servicedegradation-dz1138533-microsoft-defender-xdr-admins-updates-to-their-tenant-allow-block-list-in-the-microsoft-defender-portal-may-not-be-honored-2","status":"publish","type":"post","link":"https:\/\/m365jp.net\/index.php\/2025-09-11-servicedegradation-dz1138533-microsoft-defender-xdr-admins-updates-to-their-tenant-allow-block-list-in-the-microsoft-defender-portal-may-not-be-honored-2","title":{"rendered":"[serviceDegradation] DZ1138533 | Microsoft Defender XDR | Admins’ updates to their Tenant Allow Block List in the Microsoft Defender portal may not be honored"},"content":{"rendered":"
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DZ1138533 | Microsoft Defender XDR | Admins’ updates to their Tenant Allow Block List in the Microsoft Defender portal may not be honored<\/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>\nAdmins’ updates to their Tenant Allow Block List in the Microsoft Defender portal may not be honored.<\/td>\n<\/tr>\n
Last Updated<\/th>\n09\/11\/2025 11:04:29<\/td>\n<\/tr>\n
Start Time<\/th>\n07\/28\/2025 11:31:00<\/td>\n<\/tr>\n
End Time<\/th>\n<\/td>\n<\/tr>\n
Latest Message<\/th>\nTitle: Admins’ updates to their Tenant Allow Block List in the Microsoft Defender portal may not be honored<\/p>\n

User impact: Admins’ updates to their Tenant Allow Block List in the Microsoft Defender portal may not be honored.<\/p>\n

Current status: We’ve tested the fix in our internal testing environment and confirmed its effective in addressing the issue. We’ve begun deploying the fix to all impacted environments and expect to provide a remediation timeline by our next scheduled update.<\/p>\n

Scope of impact: This issue may impact any admin performing updates to the TABL.<\/p>\n

Start time: Monday, July 28, 2025, at 11:31 AM UTC<\/p>\n

Root cause: A portion of infrastructure isn’t writing TABL data to the expected destination, resulting in impact.<\/p>\n

Next update by: Saturday, September 13, 2025, at 12:00 PM UTC<\/td>\n<\/tr>\n

Machine Translation<\/th>\n\u30bf\u30a4\u30c8\u30eb: Microsoft Defender \u30dd\u30fc\u30bf\u30eb\u306e\u30c6\u30ca\u30f3\u30c8\u8a31\u53ef\u30d6\u30ed\u30c3\u30af \u30ea\u30b9\u30c8\u306b\u5bfe\u3059\u308b\u7ba1\u7406\u8005\u306e\u66f4\u65b0\u306f\u3001\u53d7\u3051\u5165\u308c\u3089\u308c\u306a\u3044\u5834\u5408\u304c\u3042\u308a\u307e\u3059<\/p>\n

\u30e6\u30fc\u30b6\u30fc\u3078\u306e\u5f71\u97ff: Microsoft Defender \u30dd\u30fc\u30bf\u30eb\u306e\u30c6\u30ca\u30f3\u30c8\u8a31\u53ef\u30d6\u30ed\u30c3\u30af \u30ea\u30b9\u30c8\u306b\u5bfe\u3059\u308b\u7ba1\u7406\u8005\u306e\u66f4\u65b0\u306f\u3001\u53d7\u3051\u5165\u308c\u3089\u308c\u306a\u3044\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n

\u73fe\u5728\u306e\u30b9\u30c6\u30fc\u30bf\u30b9: \u5185\u90e8\u30c6\u30b9\u30c8\u74b0\u5883\u3067\u4fee\u6b63\u30d7\u30ed\u30b0\u30e9\u30e0\u3092\u30c6\u30b9\u30c8\u3057\u3001\u554f\u984c\u306e\u89e3\u6c7a\u306b\u52b9\u679c\u7684\u3067\u3042\u308b\u3053\u3068\u3092\u78ba\u8a8d\u3057\u307e\u3057\u305f\u3002\u5f71\u97ff\u3092\u53d7\u3051\u308b\u3059\u3079\u3066\u306e\u74b0\u5883\u3078\u306e\u4fee\u6b63\u30d7\u30ed\u30b0\u30e9\u30e0\u306e\u5c55\u958b\u3092\u958b\u59cb\u3057\u3066\u304a\u308a\u3001\u6b21\u56de\u306e\u30b9\u30b1\u30b8\u30e5\u30fc\u30eb\u3055\u308c\u305f\u66f4\u65b0\u307e\u3067\u306b\u4fee\u5fa9\u30bf\u30a4\u30e0\u30e9\u30a4\u30f3\u3092\u63d0\u4f9b\u3059\u308b\u4e88\u5b9a\u3067\u3059\u3002<\/p>\n

\u5f71\u97ff\u306e\u7bc4\u56f2: \u3053\u306e\u554f\u984c\u306f\u3001TABL \u306e\u66f4\u65b0\u3092\u5b9f\u884c\u3057\u3066\u3044\u308b\u3059\u3079\u3066\u306e\u7ba1\u7406\u8005\u306b\u5f71\u97ff\u3092\u4e0e\u3048\u308b\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n

\u958b\u59cb\u6642\u9593: 2025 \u5e74 7 \u6708 28 \u65e5\u6708\u66dc\u65e5\u5348\u524d 11 \u6642 31 \u5206 UTC<\/p>\n

\u6839\u672c\u539f\u56e0: \u30a4\u30f3\u30d5\u30e9\u30b9\u30c8\u30e9\u30af\u30c1\u30e3\u306e\u4e00\u90e8\u304c TABL \u30c7\u30fc\u30bf\u3092\u4e88\u671f\u3055\u308c\u305f\u5b9b\u5148\u306b\u66f8\u304d\u8fbc\u3093\u3067\u3044\u306a\u3044\u305f\u3081\u3001\u5f71\u97ff\u304c\u751f\u3058\u3066\u3044\u307e\u3059\u3002<\/p>\n

\u6b21\u56de\u66f4\u65b0\u65e5: 2025 \u5e74 9 \u6708 13 \u65e5\u571f\u66dc\u65e5\u5348\u5f8c 12:00 UTC<\/td>\n<\/tr>\n<\/tbody>\n<\/table><\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"

DZ1138533 | Microsoft Defender XDR | Admins’ updates to their Tenant Allow Block List in the Microsoft D […]<\/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-12825","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"_links":{"self":[{"href":"https:\/\/m365jp.net\/index.php\/wp-json\/wp\/v2\/posts\/12825","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=12825"}],"version-history":[{"count":0,"href":"https:\/\/m365jp.net\/index.php\/wp-json\/wp\/v2\/posts\/12825\/revisions"}],"wp:attachment":[{"href":"https:\/\/m365jp.net\/index.php\/wp-json\/wp\/v2\/media?parent=12825"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/m365jp.net\/index.php\/wp-json\/wp\/v2\/categories?post=12825"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/m365jp.net\/index.php\/wp-json\/wp\/v2\/tags?post=12825"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}