{"id":13063,"date":"2025-10-01T02:00:51","date_gmt":"2025-09-30T17:00:51","guid":{"rendered":"https:\/\/m365jp.net\/?p=13063"},"modified":"2025-10-01T02:02:33","modified_gmt":"2025-09-30T17:02:33","slug":"servicedegradation-op1162778-microsoft-365-apps-powerpoint-users-are-unable-to-open-double-key-encryption-dke-files-on-mobile-devices","status":"publish","type":"post","link":"https:\/\/m365jp.net\/index.php\/2025-10-01-servicedegradation-op1162778-microsoft-365-apps-powerpoint-users-are-unable-to-open-double-key-encryption-dke-files-on-mobile-devices","title":{"rendered":"[serviceDegradation] OP1162778 | Microsoft 365 apps | PowerPoint users are unable to open double key encryption (DKE) files on mobile devices"},"content":{"rendered":"
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OP1162778 | Microsoft 365 apps | PowerPoint users are unable to open double key encryption (DKE) files on mobile devices<\/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>\nPowerPoint users are unable to open DKE files on mobile devices<\/td>\n<\/tr>\n
Last Updated<\/th>\n09\/30\/2025 16:46:36<\/td>\n<\/tr>\n
Start Time<\/th>\n09\/30\/2025 16:42:16<\/td>\n<\/tr>\n
End Time<\/th>\n<\/td>\n<\/tr>\n
Latest Message<\/th>\nTitle: PowerPoint users are unable to open double key encryption (DKE) files on mobile devices<\/p>\n

User impact: PowerPoint users are unable to open DKE files on mobile devices<\/p>\n

More info: Additionally, users cannot change DKE file sensitivity labels. This occurs for users leveraging both iOS and Android devices. There is no impact on other platforms where PowerPoint is supported, such as PPT for Win32.<\/p>\n

Current status: We recently deployed a change which prevents users from opening DKE files on PPT for mobile devices or creating DKE labeled files as expected. We’re developing a subsequent code change to address the issue. We’ll aim to outline an estimated time to deployment at our next scheduled update. <\/p>\n

Scope of impact: Any user attempting to open DKE files or change DKE file sensitivity labels in PowerPoint on iOS and Android devices is affected. <\/p>\n

Start time: Thursday, September 18, 2025, at 12:00 AM UTC<\/p>\n

Root cause: A recently deployed change is preventing users from opening DKE files on mobile devices or changing DKE file sensitivity labels as expected. <\/p>\n

Next update by: Monday, October 6, 2025, at 10:00 PM UTC<\/td>\n<\/tr>\n

Machine Translation<\/th>\n\u30bf\u30a4\u30c8\u30eb: PowerPoint \u30e6\u30fc\u30b6\u30fc\u306f\u30e2\u30d0\u30a4\u30eb \u30c7\u30d0\u30a4\u30b9\u3067\u4e8c\u91cd\u9375\u6697\u53f7\u5316 (DKE) \u30d5\u30a1\u30a4\u30eb\u3092\u958b\u304f\u3053\u3068\u304c\u3067\u304d\u307e\u305b\u3093<\/p>\n

\u30e6\u30fc\u30b6\u30fc\u3078\u306e\u5f71\u97ff: PowerPoint \u30e6\u30fc\u30b6\u30fc\u306f\u30e2\u30d0\u30a4\u30eb \u30c7\u30d0\u30a4\u30b9\u3067 DKE \u30d5\u30a1\u30a4\u30eb\u3092\u958b\u304f\u3053\u3068\u304c\u3067\u304d\u307e\u305b\u3093<\/p>\n

\u8a73\u7d30: \u3055\u3089\u306b\u3001\u30e6\u30fc\u30b6\u30fc\u306f DKE \u30d5\u30a1\u30a4\u30eb\u306e\u79d8\u5bc6\u5ea6\u30e9\u30d9\u30eb\u3092\u5909\u66f4\u3067\u304d\u307e\u305b\u3093\u3002\u3053\u308c\u306f\u3001iOS \u30c7\u30d0\u30a4\u30b9\u3068 Android \u30c7\u30d0\u30a4\u30b9\u306e\u4e21\u65b9\u3092\u5229\u7528\u3059\u308b\u30e6\u30fc\u30b6\u30fc\u306b\u5bfe\u3057\u3066\u767a\u751f\u3057\u307e\u3059\u3002Win32 \u306e PPT \u306a\u3069\u3001PowerPoint \u304c\u30b5\u30dd\u30fc\u30c8\u3055\u308c\u3066\u3044\u308b\u4ed6\u306e\u30d7\u30e9\u30c3\u30c8\u30d5\u30a9\u30fc\u30e0\u306b\u306f\u5f71\u97ff\u3057\u307e\u305b\u3093\u3002<\/p>\n

\u73fe\u5728\u306e\u30b9\u30c6\u30fc\u30bf\u30b9: \u6700\u8fd1\u3001\u30e6\u30fc\u30b6\u30fc\u304c\u30e2\u30d0\u30a4\u30eb \u30c7\u30d0\u30a4\u30b9\u7528\u306e PPT \u3067 DKE \u30d5\u30a1\u30a4\u30eb\u3092\u958b\u3044\u305f\u308a\u3001DKE \u30e9\u30d9\u30eb\u4ed8\u304d\u30d5\u30a1\u30a4\u30eb\u3092\u671f\u5f85\u3069\u304a\u308a\u306b\u4f5c\u6210\u3057\u305f\u308a\u3067\u304d\u306a\u3044\u3088\u3046\u306b\u3059\u308b\u5909\u66f4\u3092\u30c7\u30d7\u30ed\u30a4\u3057\u307e\u3057\u305f\u3002\u3053\u306e\u554f\u984c\u306b\u5bfe\u51e6\u3059\u308b\u305f\u3081\u306b\u3001\u5f8c\u7d9a\u306e\u30b3\u30fc\u30c9\u5909\u66f4\u3092\u958b\u767a\u4e2d\u3067\u3059\u3002\u6b21\u56de\u306e\u4e88\u5b9a\u3055\u308c\u305f\u66f4\u65b0\u3067\u3001\u30c7\u30d7\u30ed\u30a4\u307e\u3067\u306e\u63a8\u5b9a\u6642\u9593\u306e\u6982\u8981\u3092\u8aac\u660e\u3057\u307e\u3059\u3002<\/p>\n

\u5f71\u97ff\u306e\u7bc4\u56f2: iOS \u304a\u3088\u3073 Android \u30c7\u30d0\u30a4\u30b9\u4e0a\u306e PowerPoint \u3067 DKE \u30d5\u30a1\u30a4\u30eb\u3092\u958b\u3044\u305f\u308a\u3001DKE \u30d5\u30a1\u30a4\u30eb\u306e\u79d8\u5bc6\u5ea6\u30e9\u30d9\u30eb\u3092\u5909\u66f4\u3057\u3088\u3046\u3068\u3059\u308b\u3068\u3001\u5f71\u97ff\u3092\u53d7\u3051\u307e\u3059\u3002<\/p>\n

\u958b\u59cb\u6642\u9593: 18 \u5e74 2025 \u6708 12 \u65e5\u6728\u66dc\u65e5\u5348\u524d 00 \u6642 UTC<\/p>\n

\u6839\u672c\u539f\u56e0: \u6700\u8fd1\u5c55\u958b\u3055\u308c\u305f\u5909\u66f4\u306b\u3088\u308a\u3001\u30e6\u30fc\u30b6\u30fc\u304c\u30e2\u30d0\u30a4\u30eb \u30c7\u30d0\u30a4\u30b9\u3067 DKE \u30d5\u30a1\u30a4\u30eb\u3092\u958b\u3044\u305f\u308a\u3001DKE \u30d5\u30a1\u30a4\u30eb\u306e\u79d8\u5bc6\u5ea6\u30e9\u30d9\u30eb\u3092\u671f\u5f85\u3069\u304a\u308a\u306b\u5909\u66f4\u3057\u305f\u308a\u3067\u304d\u306a\u3044\u3088\u3046\u306b\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n

\u6b21\u56de\u66f4\u65b0\u65e5: 2025 \u5e74 10 \u6708 6 \u65e5\u6708\u66dc\u65e5\u5348\u5f8c 10:00 UTC<\/td>\n<\/tr>\n<\/tbody>\n<\/table><\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"

OP1162778 | Microsoft 365 apps | PowerPoint users are unable to open double key encryption (DKE) files on mobi […]<\/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-13063","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"_links":{"self":[{"href":"https:\/\/m365jp.net\/index.php\/wp-json\/wp\/v2\/posts\/13063","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=13063"}],"version-history":[{"count":0,"href":"https:\/\/m365jp.net\/index.php\/wp-json\/wp\/v2\/posts\/13063\/revisions"}],"wp:attachment":[{"href":"https:\/\/m365jp.net\/index.php\/wp-json\/wp\/v2\/media?parent=13063"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/m365jp.net\/index.php\/wp-json\/wp\/v2\/categories?post=13063"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/m365jp.net\/index.php\/wp-json\/wp\/v2\/tags?post=13063"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}