Microsoft 365 experiences global 24-hour outage due to network capacity upgrade issue
Microsoft 365 suffered a widespread outage lasting approximately 24 hours, impacting services such as Outlook, Teams, and Copilot globally in more than 70 countries. The outage began around noon ET on November 13, 2026, initially affecting North America before spreading worldwide. Microsoft confirmed the cause was a technical issue introduced during a network capacity upgrade, explicitly ruling out cyberattacks and AI involvement. As services are restored, users face delayed emails and notification floods due to backlog and increased queue time set to 48 hours. The outage disrupted governments, airlines, law enforcement, emergency services, and hospitals, highlighting risks of dependency on single cloud providers. Microsoft plans a full post-incident report after investigation completes.
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Microsoft 365 experiences global 24-hour outage due to network capacity upgrade issue
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Microsoft 365 suffered a widespread outage lasting approximately 24 hours, impacting services such as Outlook, Teams, and Copilot globally in more than 70 countries. The outage began around noon ET on November 13, 2026, initially affecting North America before spreading worldwide. Microsoft confirmed the cause was a technical issue introduced during a network capacity upgrade, explicitly ruling out cyberattacks and AI involvement. As services are restored, users face delayed emails and notification floods due to backlog and increased queue time set to 48 hours. The outage disrupted governments, airlines, law enforcement, emergency services, and hospitals, highlighting risks of dependency on single cloud providers. Microsoft plans a full post-incident report after investigation completes.