Microsoft 365 outage disrupts Outlook and AI assistants globally

rtbf.be (French) —

A major outage of Microsoft 365 services, including Outlook email, affected users worldwide on Friday, with nearly 130,000 reporting issues shortly after 7 p.m. Belgian time. Microsoft confirmed the problem could impact service connections for all users globally, attributing the disruption to an infrastructure "overload." The outage also affected AI assistants like Copilot, Claude, and ChatGPT, which rely on Microsoft accounts to access emails and calendars. The disruption hampered communications for public services, including the University of Iowa hospital network, which directed patients to its online portal. Microsoft stated it was pausing deployments, offloading affected infrastructure, and restarting servers to restore service.


With a significance score of 2.1, this news ranks in the top 23% of today's 32330 analyzed articles.

Get summaries of news with significance over 5.5 (usually ~10 stories per week). Read by 10,000+ subscribers: