GoKawiilMicrosoft outage knocks out Outlook, Teams, Copilot and Defender for 18 hours
A Microsoft cloud outage that began Thursday with Outlook email and Teams disruptions spread globally, eventually affecting Copilot AI tools, Defender security software, Intune admin dashboards, and cloud-hosted Windows PCs. Microsoft said the problem involved a large number of servers becoming unexpectedly unavailable and that services began recovering roughly 18 hours later, according to internet traffic monitoring firm Kentik.