Microsoft confirms services fully restored after day-long global outage

Microsoft announced on Saturday that services across its platforms, including Teams, Outlook, and Copilot, had fully recovered, concluding a global outage that lasted over 24 hours and disrupted online communications for businesses and governments. The outage began on Thursday, causing significant disruptions. Microsoft traced the root cause to a technical glitch during a network capacity upgrade, which was identified and rectified.

The company explained that the issue, unrelated to cyber threats or AI agents, was addressed, and a comprehensive recovery of services was initiated. Microsoft restored services gradually, validating stability at each stage, which, despite taking longer, ensured a stable restoration. The outage impacted services such as email access, calendar functions, and workplace communication, affecting businesses and government agencies.

Additionally, other companies like OpenAI and Anthropic, which rely on Microsoft services, also experienced issues related to their Microsoft 365 connectors.