Microsoft outage hits Outlook and Exchange globally, disrupting Teams and Office apps

A major Microsoft outage since Thursday evening is disrupting services globally, with Outlook and Exchange most severely impacted, causing significant access problems for users. Teams is experiencing issues with calendars and meeting scheduling, while OneDrive and SharePoint have limited functionality affected. Word, Excel, and PowerPoint face disruptions to internet-dependent features, and the Copilot AI agent has access difficulties. Microsoft attributes the failure to automatic server checks that led to load shifting and subsequent overheating from saturation. The company denies a cyberattack, favoring a technical fault explanation, though it struggles to resolve the issue.