Microsoft reports positive results in fix for global 365 outage
The company is seeing server stability after a widespread disruption affected Outlook, Teams and other services across multiple regions.
Microsoft reported on Friday that it is seeing "positive results" for server stability as it works to fix a global outage affecting Microsoft 365 services. According to the Times of India, the company has applied an upstream authentication and routing configuration component patch to part of its infrastructure to address how users connect to its servers.
The disruption began around 11:30 pm IST on Thursday, November 12, 2026, initially affecting users in the Americas. The outage impacted services including Outlook, Microsoft Teams, SharePoint Online, OneDrive, Microsoft 365 Copilot, and Microsoft Defender XDR. DownDetector reported nearly 130,000 reports of issues around 1 pm ET.
Microsoft clarified that the issue was not caused by a spike in traffic, but by a number of servers becoming unexpectedly unavailable. This placed pressure on the remaining infrastructure, as servers were failing automated health checks. The company stated it is monitoring the patch and working to roll it out to active regions as they come back online.
Microsoft executive Charles Lamanna stated on social media that there is no indication the disruption is the result of malicious or cyber activity. The company has also said it is not aware of any malicious activity causing the incident.
The outage affected various sectors, including airlines IndiGo and Akasa Air in India, and government email services in Japan. In the UK, several police forces asked the public to call 101 instead of filing reports online. Microsoft has promised a Post-Incident Report once the issue is resolved.