Microsoft Services Recover Globally Following Major Outage Affecting Millions

What Happened

A massive global service outage disrupted Microsoft Outlook, Teams, and other Microsoft 365 services across more than 70 countries, impacting over 430 million users worldwide. The disruption began on Thursday, November 12, 2026, and continued through Friday, bringing work to a halt for businesses, government agencies, and personal users.

The Cause and Response

Microsoft stated that the incident was caused by a technical issue linked to an earlier network capacity upgrade that surfaced after a recent network change. The company explicitly ruled out any connection to a cyberattack or artificial intelligence agents. Issuing an apology to customers and partners, Microsoft Executive Vice President Charles Lamanna reported encouraging progress in recovery efforts, with service availability and email delivery improving across affected infrastructure.

Global Impact

Institutions affected worldwide ranged from the Japanese government and the Philippines Supreme Court to the Australian spy agency, alongside trains, hospitals, and courts in North America. In the United Kingdom, some NHS services, schools, and police forces experienced disruption, though cyber minister Liz Lloyd noted that critical frontline services like 999 calls saw limited impact. In South Africa, winemaker Peter Pentz stated his business was brought to a standstill, while in the United States, staff in the House of Representatives reported lost legislative time due to Outlook outages. Japanese companies and government offices even resorted to fax machines and telephone lines to send documents.

Context

Mass technology outages highlight how heavily modern governments, businesses, and essential services depend on a small group of major cloud providers for daily operations. When cloud infrastructure fails, the ripple effects can quickly span international borders and disrupt multiple sectors at the same time.