Massive Microsoft 365 Outage Impacts Exchange Online, Teams, SharePoint, Copilot, and Defender XDR Users

A major Microsoft 365 outage disrupted cloud service access on November 12 and continued into November 13, 2026, as Microsoft worked to restore failing infrastructure. Microsoft confirmed that connectivity problems could affect users in any region, expanding the scope beyond its initial investigation into Exchange Online mailbox access in the Americas. The reported impact spans […]

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