A technical failure in Microsoft servers, recorded this Thursday, November 12, 2026, caused the interruption of several online services around the world. The company confirmed that the issue impacts connectivity with Microsoft 365 in several regions and reported that server malfunctions overloaded the remaining infrastructure, hindering user access. The Outlook email service is the most affected, with over 129 thousand reports of issues logged on the monitoring site Downdetector. The Microsoft 365 suite, which includes productivity tools, totals about 46 thousand reports of instability. In addition to these platforms, the Copilot chatbot and the Teams messaging service also experienced connection failures. The instability extended beyond Microsoft's direct ecosystem, affecting integrations of artificial intelligence platforms. OpenAI, responsible for ChatGPT, announced that it is investigating issues with its connections to Microsoft services, while Anthropic identified failures in a top-tier provider that are hindering its integration with Microsoft 365. The company stated that it is working to restore services safely.
Technology
Microsoft server failure causes global instability in Outlook and Microsoft 365
Downdetector recorded over 129 thousand reports of issues with Outlook and about 46 thousand with Microsoft 365, while AI services like ChatGPT and Anthropic also face outages.