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Massive Microsoft 365 outage causes auth issues, service failures

BleepingComputer·August 31, 2026·1 min read
Massive Microsoft 365 outage causes auth issues, service failures

Microsoft is investigating a widespread service issue causing authentication problems, email delays, and failures for Exchange Online customers. The outage affects multiple services, with the company working to identify the root cause and restore full functionality. No resolution timeline has been provided yet.

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