Microsoft outage disrupts Outlook, Teams, and Copilot for 130,000 users

A major Microsoft outage disrupted Outlook, Teams, Copilot, and other Microsoft 365 services on Thursday, leaving nearly 130,000 users unable to access emails and work tools. Microsoft confirmed the disruption and attributed it to unusually high infrastructure loads that caused servers to fail automated checks. A process for establishing secure connections became overloaded, prompting the company to reroute traffic and restart affected servers. The outage impacted Outlook, Teams, Copilot, and Microsoft 365, with some issues also reported in SharePoint and Power BI. As of Friday morning, November 13, Microsoft was still restoring services and had not identified a confirmed root cause.