| DZ546614 | Microsoft 365 Defender | Users may be unable to access the Threat and Vulnerability Management (TVM) page via the Microsoft 365 Defender portal |
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| Status | serviceRestored |
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| Classification | advisory |
| User Impact | Users may be unable to access the TVM dashboard page in Microsoft 365 Defender portal. |
| Last Updated | 04/27/2023 21:14:42 |
| Start Time | 04/26/2023 08:54:29 |
| End Time | 04/27/2023 20:18:43 |
| Latest Message | Title: Users may be unable to access the Threat and Vulnerability Management (TVM) pages via the Microsoft 365 Defender portal
User Impact: Users may have been unable to access the TVM pages in Microsoft 365 Defender portal. Final status: Our investigation determined that a code update responsible for facilitating user access to all the TVM pages in Microsoft 365 Defender portal was causing high latency issues, resulting in impact. We’ve manually reverted the code back to the previous update version, and we’ve confirmed that the issue has been resolved. Scope of impact: Impact was specific to any user who may have been attempting to access all the TVM pages through the Microsoft 365 Defender portal who may have served through the affected infrastructure in North America. Start time: Wednesday, April 26, 2023, at 1:00 AM UTC End time: Thursday, April 27, 2023, at 6:00 PM UTC Root cause: A code update responsible for facilitating user access to all the TVM pages in Microsoft 365 Defender portal was causing high latency issues, resulting in impact. Next steps: This is the final update for the event. |