{"id":18007,"date":"2026-08-22T13:01:37","date_gmt":"2026-08-22T04:01:37","guid":{"rendered":"https:\/\/m365jp.net\/?p=18007"},"modified":"2026-08-22T13:09:22","modified_gmt":"2026-08-22T04:09:22","slug":"investigating-dz1459263-microsoft-defender-xdr-users-may-see-failures-when-querying-the-microsoft-graph-attack-simulation-training-api-with-select-odata-query","status":"publish","type":"post","link":"https:\/\/m365jp.net\/index.php\/2026-08-22-investigating-dz1459263-microsoft-defender-xdr-users-may-see-failures-when-querying-the-microsoft-graph-attack-simulation-training-api-with-select-odata-query","title":{"rendered":"[investigating] DZ1459263 | Microsoft Defender XDR | Users may see failures when querying the Microsoft Graph Attack Simulation Training API with $Select OData query"},"content":{"rendered":"
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DZ1459263 | Microsoft Defender XDR | Users may see failures when querying the Microsoft Graph Attack Simulation Training API with $Select OData query<\/th>\n<\/tr>\n<\/tbody>\n<\/table>\n
\n\n\n\n\n\n\n\n\n\n\n
Status<\/th>\ninvestigating<\/td>\n<\/tr>\n
Classification<\/th>\nadvisory<\/td>\n<\/tr>\n
User Impact<\/th>\nUsers may see failures when querying the Microsoft Graph Attack Simulation Training API with $Select OData query.<\/td>\n<\/tr>\n
Last Updated<\/th>\n08\/22\/2026 03:33:08<\/td>\n<\/tr>\n
Start Time<\/th>\n08\/13\/2026 18:41:00<\/td>\n<\/tr>\n
End Time<\/th>\n<\/td>\n<\/tr>\n
Latest Message<\/th>\nTitle: Users see failures when querying the Microsoft Graph Attack Simulation Training API with $Select OData query <\/p>\n

User impact: Users see failures when querying the Microsoft Graph Attack Simulation Training API with $Select OData query. <\/p>\n

More info: The issue is specifically happening when using “$Select” as part of the query.<\/p>\n

Affected users can bypass the issue by not using “$Select” in the queries. <\/p>\n

Current status: We identified a code regression after a recent service update to Microsoft Defender for Office 365 that is impacting OData $Select queries. We’ve developed a code fix for the issue and are deploying to the affected environment to remediate the impact. <\/p>\n

Scope of impact: This issue may impact any user querying the Microsoft Graph Attack Simulation Training API with $Select OData query. <\/p>\n

Start time: Thursday, August 13, 2026, at 6:41 PM UTC <\/p>\n

Root cause: A code regression after a recent services update is impacting OData $Select query, causing failures. <\/p>\n

Next update by: Saturday, August 22, 2026, at 5:30 AM UTC<\/td>\n<\/tr>\n

Machine Translation<\/th>\n\u30bf\u30a4\u30c8\u30eb:\u30e6\u30fc\u30b6\u30fc\u306fOData\u30af\u30a8\u30ea\u3067Microsoft Graph Attack Simulation Training API\u3092\u30af\u30a8\u30ea\u3057\u305f\u969b\u306b\u5931\u6557$Select\u78ba\u8a8d <\/p>\n

\u30e6\u30fc\u30b6\u30fc\u3078\u306e\u5f71\u97ff:\u30e6\u30fc\u30b6\u30fc\u306fOData\u30af\u30a8\u30ea\u3067Microsoft Graph Attack Simulation Training API\u3092\u30af\u30a8\u30ea$Select\u5b9f\u884c\u3059\u308b\u3068\u5931\u6557\u3092\u78ba\u8a8d\u3057\u307e\u3059\u3002 <\/p>\n

\u3055\u3089\u306b\u8a73\u3057\u304f\u306f\u3001\u30af\u30a8\u30ea\u306b\u300c$Select\u300d\u3092\u4f7f\u3063\u305f\u3068\u304d\u306b\u7279\u306b\u554f\u984c\u304c\u8d77\u304d\u3066\u3044\u307e\u3059\u3002<\/p>\n

\u5f71\u97ff\u3092\u53d7\u3051\u305f\u30e6\u30fc\u30b6\u30fc\u306f\u3001\u30af\u30a8\u30ea\u3067\u300c$Select\u300d\u3092\u4f7f\u308f\u305a\u306b\u554f\u984c\u3092\u56de\u907f\u3067\u304d\u307e\u3059\u3002 <\/p>\n

\u73fe\u72b6:Microsoft Defender for Office 365\u306e\u6700\u8fd1\u306e\u30b5\u30fc\u30d3\u30b9\u30a2\u30c3\u30d7\u30c7\u30fc\u30c8\u5f8c\u306b\u30b3\u30fc\u30c9\u56de\u5e30\u304c\u767a\u751f\u3057\u3001OData\u306e$Select\u30af\u30a8\u30ea\u306b\u5f71\u97ff\u3092\u4e0e\u3048\u3066\u3044\u307e\u3059\u3002\u3053\u306e\u554f\u984c\u306b\u5bfe\u3059\u308b\u30b3\u30fc\u30c9\u4fee\u6b63\u3092\u958b\u767a\u3057\u3001\u5f71\u97ff\u3092\u53d7\u3051\u305f\u74b0\u5883\u306b\u5c55\u958b\u3057\u3066\u5f71\u97ff\u3092\u4fee\u5fa9\u3057\u3066\u3044\u307e\u3059\u3002 <\/p>\n

\u5f71\u97ff\u7bc4\u56f2:\u3053\u306e\u554f\u984c\u306f\u3001OData\u30af\u30a8\u30ea\u3067Microsoft Graph Attack Simulation Training API\u306b\u554f\u3044\u5408\u308f\u305b\u308b\u30e6\u30fc\u30b6\u30fc\u306b$Select\u5f71\u97ff\u3092\u53ca\u307c\u3059\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002 <\/p>\n

\u958b\u59cb\u6642\u9593:2026\u5e748\u670813\u65e5\u6728\u66dc\u65e5 18:41 UTC <\/p>\n

\u6839\u672c\u539f\u56e0:\u6700\u8fd1\u306e\u30b5\u30fc\u30d3\u30b9\u30a2\u30c3\u30d7\u30c7\u30fc\u30c8\u5f8c\u306e\u30b3\u30fc\u30c9\u56de\u5e30\u304cOData\u306e$Select\u30af\u30a8\u30ea\u306b\u5f71\u97ff\u3092\u4e0e\u3048\u3001\u5931\u6557\u3092\u5f15\u304d\u8d77\u3053\u3057\u3066\u3044\u307e\u3059\u3002 <\/p>\n

\u6b21\u56de\u66f4\u65b0:2026\u5e748\u670822\u65e5\u571f\u66dc\u65e5 \u5348\u524d5\u664230\u5206 UTC<\/td>\n<\/tr>\n<\/tbody>\n<\/table><\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"

DZ1459263 | Microsoft Defender XDR | Users may see failures when querying the Microsoft Graph Attack Simulatio […]<\/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-18007","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"_links":{"self":[{"href":"https:\/\/m365jp.net\/index.php\/wp-json\/wp\/v2\/posts\/18007","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=18007"}],"version-history":[{"count":0,"href":"https:\/\/m365jp.net\/index.php\/wp-json\/wp\/v2\/posts\/18007\/revisions"}],"wp:attachment":[{"href":"https:\/\/m365jp.net\/index.php\/wp-json\/wp\/v2\/media?parent=18007"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/m365jp.net\/index.php\/wp-json\/wp\/v2\/categories?post=18007"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/m365jp.net\/index.php\/wp-json\/wp\/v2\/tags?post=18007"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}