Title: Users may be unable to perform searches in Microsoft Defender
User impact: Users may have been unable to perform searches in Microsoft Defender.
More info: Users may have seen an error message stating “We couldn’t display this page”.
Final status: We’ve implemented changes to update the authorization component and we’ve restarted the service for remediation. After monitoring the service, we’ve verified that these actions have successfully resolved the problem.
Scope of impact: This issue may have potentially affected any user attempting to perform searches in Microsoft Defender.
Start time: Tuesday, November 28, 2023, at 10:03 PM UTC
End time: Wednesday, November 29, 2023, at 12:50 PM UTC
Root cause: A recent update to an authentication component for identity services was impacting search functionality in Microsoft Defender.
Next steps:
– We’re investigating how the recent update to an authentication component for identity services was impacting search functionality in Microsoft Defender to prevent this problem from happening again.
This is the final update for the event.
