Microsoft services, including Teams, Outlook, Copilot and several Microsoft 365 applications, affecting users worldwide on Friday, Nov. 13, 2026.(Photo:PTI)
Outlook and Teams are two of the most widely used workplace applications with hundreds of millions of users. The outage prevented people from performing essential functions such as sending emails, managing calendars and hosting virtual meetings.
It affected government agencies from Australia and Japan to the United States, caused delays at trading firms, hindered some companies from publishing earnings and prompted airlines to warn customers of communication lags, according to public statements.
Organizations that host Microsoft services on their own servers, rather than in the cloud, were somewhat spared.
The outage, reports of which started climbing around 1725 GMT on Thursday according to Ookla, is one of the longest in Microsoft's history and the second disruption to its services this year.