Title: Some users of Microsoft Entra ID may have experienced failures when attempting to login to Microsoft portals
User impact: Users of Microsoft Entra ID may have experienced failures when attempting to login to Microsoft portals.
Final status: Our investigation has determined that an update to improve the functionality of Microsoft Entra ID introduced a misconfiguration which was resulting in impact. We’ve reverted this change and observed through service telemetry that this has resolved the issue.
Scope of impact: Impact was specific to some users who were served through the affected infrastructure.
Start time: Sunday, January 28, 2024 at 2:58 PM UTC
End time: Tuesday, February 6, 2024, at 1:27 PM UTC
Root cause: An update to improve the functionality of Microsoft Entra ID introduced a misconfiguration which resulted in impact
Next steps:
– We’re reviewing our standard update procedures to help prevent this issue from happening again.
This the final update for this event.
