Microsoft says a technical slip during a network upgrade caused the Microsoft outage that hit Outlook, Teams and Copilot users worldwide.

Microsoft has now explained the cause of the recent Microsoft outage. The company says a technical error was to blame. It rules out a cyberattack and the work of AI agents.
Microsoft Outage Disrupts Users Across the Globe
Microsoft services ran into serious trouble around the world on November 12. Users complained about Outlook email, Microsoft 365, Copilot, Teams and other company tools. Downdetector data shows the problems reached 74 countries and territories in just one hour. Microsoft has not fully resolved every issue yet.
Company Points to a Network Change
A company spokesperson explained what happened. “This was a technical problem not related to a cyberattack or AI agents. The incident was caused by an error made during an earlier expansion of network capacity and manifested after a recent change in the network,” the company spokesperson said.
What the Microsoft Outage Means for Users
The statement answers the biggest question people had during the Microsoft outage. Microsoft says hackers and AI agents played no part. The company links the failure to its own network work instead.









