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Abnormal Security incident

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Abnormal Security

Account Takeover – Delayed Sign-In Event Processing (Microsoft M365 Customers)

Summary

Microsoft services have fully recovered from the degraded M365 sign-in audit log delivery, and Abnormal services have also recovered as of 09:41 UTC on May 30, 2026. Abnormal engineering has initiated a reprocess to ensure all Account Takeover detections from the impacted time window are properly processed. No sign-in data was lost during this event. If you experience any further issues, please reach out to Abnormal support at [email protected].
Ongoing5/30/2026, 12:14 PM EDT<1mminor
View at Abnormal Security

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