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  1. Microsoft 365 MFA 504 Outage Tied to Third-Party Duo Incident MO1237461

    Microsoft’s authentication systems briefly tripped over a dependency on Monday, leaving some North American users unable to complete sign‑ins to Microsoft 365 because Multi‑Factor Authentication (MFA) requests returned 504 “gateway timeout” errors — a disruption Microsoft logged as incident...
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    • Forum: Windows News