Users may experience issues when trying to access services that require Multi-Factor Authentication (MFA)

Resolved

Microsoft has reported that this incident is resolved. Update from Microsoft below:

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Current status
Feb 23, 2026, 11:25 AM CST
We've confirmed that the reported impact has been mitigated. Our investigation determined that Microsoft services were operating as expected throughout the incident. We’ve confirmed with a third‑party authentication provider (Cisco/Duo) that a fix deployed within their environment has resolved the issue, and we’re seeing successful authentication attempts.
This is the final update for the event.
Posted Feb 23, 2026 - 11:41 CST

Update

Sharing update from Microsoft below:

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Users may experience issues when trying to access services that require Multi-Factor Authentication (MFA)

Issue ID: MO1237461
Affected services: Microsoft 365 suite
Status: Service degradation
Issue type: Incident
Start time: Feb 23, 2026, 8:52 AM CST

User impact
Some users may experience issues accessing Microsoft 365 services, particularly during sign‑in or authentication.

Scope of impact
This issue may affect any user within your organization. We've confirmed the following region(s) are impacted by this issue: North America. Additional impacted region(s) may be included as our investigation continues.


Current status
Feb 23, 2026, 9:57 AM CST

History of updates
Feb 23, 2026, 9:26 AM CST
We're investigating reports of impact to M365 services and we're analyzing service telemetry to identify the specific source of the issue, and any next steps to mitigate impact.
Feb 23, 2026, 8:53 AM CST
We're investigating a potential issue with the Microsoft 365 service and checking for impact to your organization. We'll provide an update within 30 minutes.
Posted Feb 23, 2026 - 10:08 CST

Monitoring

Microsoft is investigating an unspecified issue with Microsoft 365 services that may impact users.

Current scope and impact is unknown. Updates will be shared as they become available.
Posted Feb 23, 2026 - 09:20 CST
This incident affected: Multi-Factor Authentication (MFA).