Microsoft resolves prolonged global outage affecting Teams, Outlook, dismisses cyberattack

Microsoft has restored Teams, Outlook and other services after a global outage of more than 24 hours, blaming server issues and ruling out a cyberattack.

Microsoft has fully restored Teams, Outlook and its other services after a global outage lasting more than 24 hours, ruling out malicious activity as the cause, Nairawmetrics reports.

“We have completed our efforts to address the underlying issue of the incident and restored service to the remaining impacted customers and regions,” the company said on X.

Microsoft blamed server-related issues and ruled out artificial intelligence as a cause.

The disruption, which began on Thursday, hit features linked to Exchange Online, its cloud-based email and scheduling service, affecting email, calendars and virtual meetings.

Government agencies in Australia, Japan and the US reported disruptions, while trading firms faced delays and airlines warned of communication problems.

Downdetector logged more than 7.4 million reports worldwide, according to its operator, Ookla.

Morningstar DBRS’s Mario De Cicco estimated global insured losses at between $300 million and $500 million, Reuters reported.

Microsoft’s shares closed flat at $523.88 on Friday, leaving the stock up about 8% this year.