Microsoft is investigating a widespread outage affecting multiple Microsoft 365 services, including Outlook, Microsoft Teams, and Copilot, as users report connectivity problems worldwide.

The outage impacting various Microsoft 365 services including Outlook, Teams, and the Copilot AI assistant, has caused disruption to governments and businesses globally.

What caused the Microsoft outage, which services have been affected and how widespread has the disruption been?

The outage has affected some government systems in Singapore, but authorities assured the public that emergency services remain fully operational.

As the outage wore on, Microsoft expanded its list of affected services to include Exchange Online, Teams, SharePoint Online, Microsoft 365 Copilot, Defender XDR, Planner, To Do and Purview, XDA reported. Microsoft said some servers had become unexpectedly unavailable and that the disruption was not caused by increased traffic, The Korea Times reported.

Microsoft is investigating a widespread outage affecting multiple Microsoft 365 services, including Outlook, Microsoft Teams, and Copilot, as users report connectivity problems worldwide.