Microsoft 365 Outage Disrupts Government Agencies and Global Businesses

A Microsoft 365 outage lasting more than 12 hours has disrupted Outlook, Teams and Copilot across several countries, affecting government agencies and businesses that depend on the services.

Microsoft said server problems caused the disruption, with the main impact on functions that rely on Exchange Online. The company also said it had found no evidence of malicious activity.

Government agencies in Australia, Japan, the United States and the United Kingdom were among those affected. The United Kingdom’s National Health Service (NHS) switched to paper records and other workarounds. Business operations were also disrupted at Euronext, Maersk, OpenAI and Anthropic.

A repair patch had been rolled out, and services were moving toward stability. Microsoft 365 has now suffered its second service outage this year. The latest failure has affected government bodies and commercial companies across several regions, extending beyond one country or one type of institution.