Microsoft restores 365 services after global outage blamed on network upgrade
A server failure cut Outlook, Teams and Copilot for users worldwide from Thursday evening. Microsoft ruled out a cyberattack and reported improving recovery on Friday.
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Microsoft 365 outage
Where things stand
Microsoft says a flaw from an earlier network capacity upgrade, not a cyberattack, caused the global 365 outage that began Thursday evening. After a patch and extra capacity, its status page reported "sustained improvement" in Europe on Friday, 13 November, with some intermittent problems remaining.
Microsoft 365 services such as Outlook, Teams and Copilot are used by businesses and individuals worldwide, so a failure in the underlying network affects many users at once. The topic covers the outage that began on Thursday evening, 12 November 2026, and Microsoft's recovery efforts.