{"id":16012,"date":"2026-04-18T14:01:40","date_gmt":"2026-04-18T05:01:40","guid":{"rendered":"https:\/\/m365jp.net\/?p=16012"},"modified":"2026-04-18T14:06:33","modified_gmt":"2026-04-18T05:06:33","slug":"servicedegradation-dz1283890-microsoft-defender-xdr-users-may-experience-delays-and-see-failures-with-multiple-functions-in-microsoft-defender","status":"publish","type":"post","link":"https:\/\/m365jp.net\/index.php\/2026-04-18-servicedegradation-dz1283890-microsoft-defender-xdr-users-may-experience-delays-and-see-failures-with-multiple-functions-in-microsoft-defender","title":{"rendered":"[serviceDegradation] DZ1283890 | Microsoft Defender XDR | Users may experience delays and see failures with multiple functions in Microsoft Defender"},"content":{"rendered":"
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DZ1283890 | Microsoft Defender XDR | Users may experience delays and see failures with multiple functions in Microsoft Defender<\/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 experience delays and see failures with multiple functions in Microsoft Defender.<\/td>\n<\/tr>\n
Last Updated<\/th>\n04\/18\/2026 04:26:30<\/td>\n<\/tr>\n
Start Time<\/th>\n04\/17\/2026 23:43:52<\/td>\n<\/tr>\n
End Time<\/th>\n<\/td>\n<\/tr>\n
Latest Message<\/th>\nTitle: Users may experience delays and see failures with multiple functions in Microsoft Defender<\/p>\n

User impact: Users may experience delays and see failures with multiple functions in Microsoft Defender.<\/p>\n

More info: Some users may experience delays and failures with the following functions:
– Threat Explorer
– Defender Portal explorer
– Email entity
– Advanced hunting<\/p>\n

Current status: Based on our monitoring we can see that the backlog of requests as a result of the impact from the previous incident communicated for in DZ1282661 is draining overtime. We’re monitoring the backlog of requests to ensure that they are processed and that the impact is remediated.<\/p>\n

Scope of impact: This event could impact some Microsoft Defender users serviced through North America, who are attempting to utilize functions such as Threat Explorer, Defender Portal explorer, Email entity, and Advanced hunting. This section may be updated as our investigation continues.<\/p>\n

Start time: Thursday, April 16, 2026, at 6:00 PM UTC<\/p>\n

Root cause: Increased traffic to a portion of the service infrastructure is causing failures for users who are attempting to utilize functions such as Threat Explorer, Defender Portal explorer, Email entity, and Advanced hunting and is resulting in this impact.<\/p>\n

Next update by: Monday, April 20, 2026, at 3:00 PM UTC<\/td>\n<\/tr>\n

Machine Translation<\/th>\n\u30bf\u30a4\u30c8\u30eb:Microsoft Defender\u3067\u8907\u6570\u306e\u6a5f\u80fd\u3067\u9045\u5ef6\u3084\u969c\u5bb3\u304c\u767a\u751f\u3059\u308b\u5834\u5408\u304c\u3042\u308a\u307e\u3059<\/p>\n

\u30e6\u30fc\u30b6\u30fc\u3078\u306e\u5f71\u97ff:Microsoft Defender\u3067\u306f\u8907\u6570\u306e\u6a5f\u80fd\u3067\u9045\u5ef6\u3084\u969c\u5bb3\u304c\u767a\u751f\u3059\u308b\u3053\u3068\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n

\u8a73\u7d30\u60c5\u5831:\u4e00\u90e8\u306e\u30e6\u30fc\u30b6\u30fc\u306f\u4ee5\u4e0b\u306e\u6a5f\u80fd\u3067\u9045\u5ef6\u3084\u6545\u969c\u3092\u7d4c\u9a13\u3059\u308b\u3053\u3068\u304c\u3042\u308a\u307e\u3059:
– \u8105\u5a01\u30a8\u30af\u30b9\u30d7\u30ed\u30fc\u30e9\u30fc
– Defender Portal \u30a8\u30af\u30b9\u30d7\u30ed\u30fc\u30e9\u30fc
– \u30e1\u30fc\u30eb\u30a8\u30f3\u30c6\u30a3\u30c6\u30a3
– \u9ad8\u5ea6\u306a\u72e9\u731f<\/p>\n

\u73fe\u72b6:\u76e3\u8996\u306e\u7d50\u679c\u3001DZ1282661\u5e74\u306b\u4f1d\u3048\u3089\u308c\u305f\u524d\u56de\u306e\u30a4\u30f3\u30b7\u30c7\u30f3\u30c8\u306e\u5f71\u97ff\u306b\u3088\u308b\u30ea\u30af\u30a8\u30b9\u30c8\u306e\u30d0\u30c3\u30af\u30ed\u30b0\u304c\u6b8b\u696d\u306b\u5927\u304d\u304f\u5f71\u97ff\u3057\u3066\u3044\u308b\u3053\u3068\u304c\u308f\u304b\u308a\u307e\u3059\u3002\u79c1\u305f\u3061\u306f\u30ea\u30af\u30a8\u30b9\u30c8\u306e\u30d0\u30c3\u30af\u30ed\u30b0\u3092\u76e3\u8996\u3057\u3001\u305d\u308c\u3089\u304c\u51e6\u7406\u3055\u308c\u3001\u5f71\u97ff\u304c\u662f\u6b63\u3055\u308c\u3066\u3044\u308b\u3053\u3068\u3092\u78ba\u8a8d\u3057\u307e\u3059\u3002<\/p>\n

\u5f71\u97ff\u7bc4\u56f2:\u3053\u306e\u30a4\u30d9\u30f3\u30c8\u306f\u3001\u5317\u7c73\u3067\u30b5\u30fc\u30d3\u30b9\u3092\u53d7\u3051\u308bMicrosoft Defender\u30e6\u30fc\u30b6\u30fc\u306e\u4e00\u90e8\u306b\u5f71\u97ff\u3092\u53ca\u307c\u3059\u53ef\u80fd\u6027\u304c\u3042\u308a\u3001\u5f7c\u3089\u306fThreat Explorer\u3001Defender Portal explorer\u3001Email entity\u3001Advanced Hunting\u306a\u3069\u306e\u6a5f\u80fd\u3092\u5229\u7528\u3057\u3088\u3046\u3068\u3057\u3066\u3044\u307e\u3059\u3002\u3053\u306e\u30bb\u30af\u30b7\u30e7\u30f3\u306f\u8abf\u67fb\u304c\u9032\u3080\u306b\u3064\u308c\u3066\u66f4\u65b0\u3055\u308c\u308b\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n

\u958b\u59cb\u6642\u9593:2026\u5e744\u670816\u65e5\u6728\u66dc\u65e5 \u5348\u5f8c6\u6642 UTC<\/p>\n

\u6839\u672c\u539f\u56e0:\u30b5\u30fc\u30d3\u30b9\u30a4\u30f3\u30d5\u30e9\u306e\u4e00\u90e8\u3078\u306e\u30c8\u30e9\u30d5\u30a3\u30c3\u30af\u5897\u52a0\u306b\u3088\u308a\u3001Threat Explorer\u3001Defender Portal explorer\u3001Email entity\u3001Advanced Hunting\u306a\u3069\u306e\u6a5f\u80fd\u3092\u5229\u7528\u3057\u3088\u3046\u3068\u3059\u308b\u30e6\u30fc\u30b6\u30fc\u304c\u5931\u6557\u3057\u3001\u3053\u306e\u5f71\u97ff\u3092\u5f15\u304d\u8d77\u3053\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n

\u6b21\u56de\u66f4\u65b0:2026\u5e744\u670820\u65e5(\u6708)\u5348\u5f8c3\u6642 UTC<\/td>\n<\/tr>\n<\/tbody>\n<\/table><\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"

DZ1283890 | Microsoft Defender XDR | Users may experience delays and see failures with multiple functions in M […]<\/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-16012","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"_links":{"self":[{"href":"https:\/\/m365jp.net\/index.php\/wp-json\/wp\/v2\/posts\/16012","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=16012"}],"version-history":[{"count":0,"href":"https:\/\/m365jp.net\/index.php\/wp-json\/wp\/v2\/posts\/16012\/revisions"}],"wp:attachment":[{"href":"https:\/\/m365jp.net\/index.php\/wp-json\/wp\/v2\/media?parent=16012"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/m365jp.net\/index.php\/wp-json\/wp\/v2\/categories?post=16012"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/m365jp.net\/index.php\/wp-json\/wp\/v2\/tags?post=16012"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}