Nearly 5 hours into global Microsoft 365 outage, failures persist in Teams, Outlook and Copilot

TechnologyInternationalBioBioChileNov 12, 2026, 5:29 PMAI summary

Microsoft 365 suffered an outage affecting several regions of the world on the afternoon of Thursday, November 12, with problems in Exchange Online, Teams, SharePoint Online, Copilot 365 and Defender XDR. Microsoft acknowledged the failure on X at 12:54 (US Eastern time) and later confirmed it could affect connectivity "in any region." The company redistributed traffic, restarted affected machines, applied a fix and paused deployments and configuration changes while it reviews whether a recent modification is related. The issue affected enterprise and corporate customers.

In 40 seconds

The outage hit Exchange Online, Teams, SharePoint Online, Copilot 365 and Defender XDR across several regions of the world.
Microsoft confirmed the failure could affect Microsoft 365 connectivity "in any region" and redistributed traffic across its global infrastructure.
The company applied a fix, restarted affected machines and paused deployments and configuration changes while reviewing possible causes.

Read the full story at BioBioChile

IASummary generated by artificial intelligence from a story by BioBioChile. It may contain errors: the original source prevails.

Microsoft 365
caída de servicio
Teams
Copilot
ciberseguridad

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Nearly 5 hours into global Microsoft 365 outage, failures persist in Teams, Outlook and Copilot

In 40 seconds

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Keep reading

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New EU Machinery Regulation adds cybersecurity and AI to safety requirements for lifting equipment

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People Day by Buk: leaders who put people at the center of the future of work