Microsoft Global Outage Disrupts Governments and Businesses Across 74 Countries
Microsoft restored services after a global infrastructure failure disabled Outlook, Teams, and Copilot, causing widespread disruption to government agencies, healthcare, and financial markets.
A massive global outage of Microsoft 365 services, including Outlook, Teams, and Copilot, disrupted millions of users across 74 countries and territories starting November 12, 2026. Microsoft Corporation attributed the failure to a network capacity upgrade and subsequent configuration change that caused numerous servers to fail automated health checks. This triggered an elevated load on remaining infrastructure, rendering it unresponsive. The company explicitly ruled out malicious cyber activity or AI agents as the cause.
The disruption caused severe operational chaos. In the United Kingdom, the National Health Service faced delays in patient referrals and prescriptions, while police forces in Cumbria and Thames Valley were unable to receive online crime reports. In Australia, the outage crippled the Australian Federal Police and the Australian Security Intelligence Organisation, prompting the government to activate a priority restoration agreement. Other impacted entities included the U.S. House of Representatives, the Philippine Supreme Court, and government ministries in Japan, Singapore, and Norway. Financial markets in Japan and Taiwan reverted to fax machines and manual processes to maintain trading.
Recovery was gradual, with Microsoft extending email timeout windows to 48 hours to prevent data loss. While consumer services recovered by November 14, enterprise restoration took longer. The event sparked international debate over digital sovereignty and the risks of IT monoculture. In Australia, the outage is estimated to have cost the economy billions of dollars, while global insured losses are projected between $300 million and $500 million.
