Microsoft said it restored services across its productivity suite after a global outage stretched beyond 24 hours, bringing Outlook, Teams, Copilot and other Microsoft 365 tools back for remaining affected customers and regions. The company said it had addressed the underlying issue; it has not yet published a full post-incident report.

The restoration is a new development in the outage covered in The Globuzz’s earlier report on Microsoft 365 disruptions. Associated Press and Reuters both reported Microsoft’s Saturday service-restoration update. Microsoft’s statement described recovery as reaching the remaining impacted customers and regions.

What Microsoft says caused the outage

Microsoft attributed the incident to a technical problem that surfaced after a network change during an earlier capacity upgrade. The company said there was no indication that malicious activity or AI agents caused the outage. It has not provided a complete public technical account, so the precise failure sequence and safeguards against a repeat remain open questions until its post-incident review is released.

The outage began around midday Thursday in the United States and affected Microsoft 365 services, including Exchange Online, Outlook, Teams and Copilot. Users in more than 70 countries and territories reported problems, according to Downdetector data cited by AP. Governments, courts, health services, airlines, banks and businesses also reported disruptions, although the total number of people affected was not clear.

What users should know after restoration

Microsoft’s statement confirms that it restored service, but organizations may still need to check for delayed messages, missed meetings or workarounds used during the interruption. AP reported that Microsoft planned to provide a post-incident review after mitigation. Until that account appears, customers do not have a full public explanation of the failure or its prevention measures.

The event also exposed how disruptions to shared workplace platforms can affect services far beyond email and video calls. The Globuzz will update this report if Microsoft publishes a detailed incident review. For related developments, see the Tech section.

Sources

Associated Press on the restoration and outage timeline; Reuters report on Microsoft’s full recovery statement; Microsoft 365 Status updates.