Microsoft Services Return After Global Outage

The project scope of the outage involved Microsoft 365 services, including Outlook, Teams, and Copilot 365. These services are essential for communication, collaboration, and productivity across various sectors such as healthcare, education, and government. The outage was not caused by a cyberattack or AI agents, as Microsoft clarified. Instead, it was traced back to an issue during an earlier network capacity upgrade that emerged after a recent network change. This technical issue led to widespread service disruptions, affecting both personal and organizational workflows. [1]

The history of the outage began on Thursday afternoon, November 12, 2026, when Microsoft services started experiencing significant disruptions. The company worked through the night to address the issue, with initial attempts to improve serviceability failing. However, by 2:45 AM on Friday, November 13, 2026, Microsoft reported positive results from traffic optimization actions. Recovery progressed gradually, with broader improvements noted in North America by 8:30 AM, followed by sustained improvements in Europe and encouraging signals in the Asia Pacific region. Microsoft issued a formal apology and explained that the incident was due to a network-related issue that had been resolved. [1]

Documented limits of the outage included the inability to send and receive emails through Outlook, disruptions in video conferencing and communication via Microsoft Teams, and the unavailability of Copilot 365 features. These limitations affected a wide range of organizations, including emergency services, government agencies, and educational institutions. The outage also had implications for legal and judicial systems, with reports that the House of Representatives and court systems were impacted. In Japan, the outage had a particularly significant impact, as the majority of businesses and institutions rely heavily on Microsoft services for daily operations. The incident underscored the importance of having backup systems and redundancies in place to mitigate the effects of such outages. [1]

Microsoft services that went down amid a widespread outage are gradually coming back online, the company said. An issue that impacted Microsoft 365 on Thursday afternoon took out services such as Outlook, Teams, and Copilot 365, disrupting businesses and organizations around the world (Engadget). The company toiled overnight to restore service, with updates indicating progress in service stability and capacity following traffic optimization actions (Engadget). [1]

Health care providers, schools, and governmental bodies are among those affected, with the outage disrupting calls to emergency services, governments, the House of Representatives, court systems, and other organizations (Engadget). The UK's National Pharmacy Association said the email issues could cause delays to some prescriptions, highlighting the critical nature of Microsoft services in essential sectors (Engadget). [1]

In Japan, where the majority of businesses and institutions are said to use Microsoft services, some companies temporarily reverted to using fax machines due to the outage (Engadget). The incident was not the result of a cyberattack or AI agents causing havoc, but rather an issue introduced during an earlier network capacity upgrade following a recent network change (Engadget). [1]

Editorial note: This article is sourced. Some claims are awaiting further verification.

Sources

Engadget

Prepared with AI assistance from the cited sources.