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Microsoft fixes bug behind random Office 365 deactivation errors

ID: 6f35ba60-a76d-53c3-9d8d-99e9c17a011c

STIX ID: report--6f35ba60-a76d-53c3-9d8d-99e9c17a011c

Feed Name: Bleeping Computer

Date Published: 2024-12-23

Date Updated: 2026-03-27

Author: Sergiu Gatlan

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Microsoft has deployed a service-side patch to resolve a bug that triggered random “Product Deactivated” warnings in Microsoft 365 apps after licensing changes or group moves, and offers temporary workarounds such as reactivating, signing out/in, restarting apps, checking subscription status, and sharing diagnostics logs with support; this is a product/licensing issue rather than a cybersecurity incident.

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