GoKawiilMicrosoft 365 outage disrupts Exchange, Teams and Copilot worldwide
Microsoft 365 suffered a prolonged service degradation beginning at 1826 GMT on November 12, knocking out Exchange Online, Teams messaging, file access and Copilot for customers including education users. By 1401 GMT the next day, Microsoft said it was seeing improvements in service availability, though it had not confirmed full resolution.
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The outage gives rivals and critics a concrete example to cite when warning about the risks of relying on a single cloud vendor for core business functions. Nextcloud co-founder Jos Poortvliet argued that such concentration makes it harder for organizations to switch providers or maintain backup systems during an incident, a point likely to be echoed by other competitors pushing multi-vendor or decentralized alternatives.
- Microsoft 365 outage began November 12 at 1826 GMT, affecting Exchange Online, Teams, Copilot and file access.
- Microsoft reported improving service availability by 1401 GMT on November 13 but full recovery timing was unclear.
- Rivals like Nextcloud used the incident to highlight risks of depending on a single cloud ecosystem.
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Published there as: “Microsoft outage gives customers a crash course in dependence on Redmond”
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