{"id":16416,"date":"2026-05-20T23:00:56","date_gmt":"2026-05-20T14:00:56","guid":{"rendered":"https:\/\/m365jp.net\/?p=16416"},"modified":"2026-05-20T23:01:22","modified_gmt":"2026-05-20T14:01:22","slug":"servicedegradation-dz1316705-microsoft-defender-xdr-some-admins-may-experience-a-gap-in-security-telemetry-data-and-alerts-in-microsoft-defender-for-endpoint-and-identity","status":"publish","type":"post","link":"https:\/\/m365jp.net\/index.php\/2026-05-20-servicedegradation-dz1316705-microsoft-defender-xdr-some-admins-may-experience-a-gap-in-security-telemetry-data-and-alerts-in-microsoft-defender-for-endpoint-and-identity","title":{"rendered":"[serviceDegradation] DZ1316705 | Microsoft Defender XDR | Some admins may experience a gap in security telemetry data and alerts in Microsoft Defender for Endpoint and Identity"},"content":{"rendered":"
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DZ1316705 | Microsoft Defender XDR | Some admins may experience a gap in security telemetry data and alerts in Microsoft Defender for Endpoint and Identity<\/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 may experience a gap in security telemetry data and alerts in Microsoft Defender for Endpoint and Identity.<\/td>\n<\/tr>\n
Last Updated<\/th>\n05\/20\/2026 13:32:19<\/td>\n<\/tr>\n
Start Time<\/th>\n05\/20\/2026 11:08:04<\/td>\n<\/tr>\n
End Time<\/th>\n<\/td>\n<\/tr>\n
Latest Message<\/th>\nTitle: Some admins may experience a gap in security telemetry data and alerts in Microsoft Defender for Endpoint and Identity<\/p>\n

User impact: Admins may experience a gap in security telemetry data and alerts in Microsoft Defender for Endpoint and Identity.<\/p>\n

More info: Impacted admins may experience a point-in-time gap of approximately 30 minutes in security telemetry data for Microsoft Defender for Endpoint and Microsoft Defender for Identity (V3 clients) when viewing information in the Microsoft Defender portal and Microsoft Sentinel, as the affected data was not ingested.<\/p>\n

Current status: We\u2019ve deployed the fix to restore the authentication component and data ingestion. We\u2019re monitoring the service to confirm stability. In parallel, we\u2019re working to backfill the telemetry data gap from the impact window. Users may continue to experience gaps in telemetry and alerting until this recovery process completes.<\/p>\n

Scope of impact: Some admins relying on security telemetry reporting in Microsoft Defender for Endpoint and Microsoft Defender for Identity (V3 clients) may be impacted. This information may be updated as our investigation continues.<\/p>\n

Start time: Wednesday, May 20, 2026, at 7:30 AM UTC<\/p>\n

Root cause: An authentication component misconfiguration is causing authentication issues within a core part of the Microsoft Defender for Endpoint and Microsoft Defender for Identity services, resulting in telemetry data not being ingested.<\/p>\n

Next update by: Wednesday, May 20, 2026, at 3:30 PM UTC<\/td>\n<\/tr>\n

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\u5f71\u97ff\u7bc4\u56f2:Microsoft Defender for Endpoint\u304a\u3088\u3073Microsoft Defender for Identity(V3\u30af\u30e9\u30a4\u30a2\u30f3\u30c8)\u3067\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u30c6\u30ec\u30e1\u30c8\u30ea\u30ec\u30dd\u30fc\u30c8\u306b\u4f9d\u5b58\u3059\u308b\u7ba1\u7406\u8005\u306e\u4e00\u90e8\u306f\u5f71\u97ff\u3092\u53d7\u3051\u308b\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002\u3053\u306e\u60c5\u5831\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\u5e745\u670820\u65e5\u6c34\u66dc\u65e5 \u5348\u524d7\u664230\u5206 UTC<\/p>\n

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\u6b21\u56de\u66f4\u65b0:2026\u5e745\u670820\u65e5\u6c34\u66dc\u65e5 15:30 UTC<\/td>\n<\/tr>\n<\/tbody>\n<\/table><\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"

DZ1316705 | Microsoft Defender XDR | Some admins may experience a gap in security telemetry data and alerts in […]<\/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-16416","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"_links":{"self":[{"href":"https:\/\/m365jp.net\/index.php\/wp-json\/wp\/v2\/posts\/16416","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=16416"}],"version-history":[{"count":0,"href":"https:\/\/m365jp.net\/index.php\/wp-json\/wp\/v2\/posts\/16416\/revisions"}],"wp:attachment":[{"href":"https:\/\/m365jp.net\/index.php\/wp-json\/wp\/v2\/media?parent=16416"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/m365jp.net\/index.php\/wp-json\/wp\/v2\/categories?post=16416"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/m365jp.net\/index.php\/wp-json\/wp\/v2\/tags?post=16416"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}