Microsoft 365 outage hits millions worldwide as email and apps go down

A major global outage has knocked out key Microsoft services including Outlook, Teams, and the Copilot AI tool, leaving millions of people unable to access their email and business apps. The technical trouble started on Thursday afternoon and has already impacted an estimated 430 million users of Microsoft 365 applications around the world.

The Breakdown

Tracking platforms note that between 3 and 4 million businesses rely on the Microsoft 365 suite, while the BBC reports that over 90 percent of Fortune 500 companies use Copilot. According to statements from the company's Microsoft 365 Status account, a portion of the tech giant's infrastructure suffered an overloaded state across multiple regions, causing widespread connection errors that primarily affected Exchange Online.

Repair Efforts

Microsoft communications director Ben Hope stated that the firm is investigating the problems and working to restore services. Repair efforts faced unexpected setbacks when engineers ran into trouble rebooting servers and tracking their health status. Several hours into the disruption, Microsoft reported that it managed to bring some affected servers back online while shifting user traffic to alternative pathways.

Context

Cloud service disruptions of this scale highlight how heavily modern workplaces depend on a small number of massive tech providers for daily communication. When central cloud infrastructure fails, it instantly halts operations for millions of workers and businesses globally.