Microsoft Global Outage Disrupts Outlook, Teams and Copilot Services

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Microsoft began bringing Outlook, Teams and other services back online on Friday after a disruption of roughly 20 hours that disrupted workplaces, public offices and institutions around the world. The company cautioned that some customers may still see occasional glitches while engineers finish the recovery.

A fast-moving, far-reaching failure

Within about an hour, the trouble had spread to users in 74 countries and territories, according to outage tracker Downdetector. Outlook, Teams and the AI assistant Copilot were among the affected products. Hospitals and clinics reported disruption, some companies were unable to release their earnings reports on schedule, and schools had trouble reaching students and parents. Complaints on the tracker began tapering off by around 0900 GMT.

Microsoft first said it was looking into problems in the Americas, then confirmed that Microsoft 365 connectivity was failing for customers in several regions. It blamed unusually high load on its infrastructure for the...

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