The Microsoft 365 outage that began Thursday was still unresolved Friday morning, with Outlook, Teams, SharePoint and Copilot disrupted worldwide, ITdaily reported. ITdaily puts the start at 5:17 p.m. Belgian time at Exchange Online; CNBC reported connectivity issues began shortly before 1 p.m. ET. Downdetector counted more than 130,000 Outlook reports from 74 countries and territories on Thursday evening, according to ITdaily. Anthropic and OpenAI reported that the Microsoft 365 connectors for Claude and ChatGPT were not working.
Microsoft said many servers had dropped out after failing automated health checks, shifting load to the rest of its infrastructure. It is rolling back a recent network configuration change that "coincides with the start of the impact," ITdaily reported, but has not confirmed it as the cause. Restarted servers failed again once they took traffic. Microsoft said it saw "early signs of stabilization" but gave no time for full recovery, and it is extending delivery retries for delayed emails for up to 48 hours, CNBC reported.
Executive Vice President Charles Lamanna said there is "no indication" of a cyberattack. CNBC reported that Richemont's earnings were slightly delayed, Workhorse Group moved its results to November 16 and Air India rerouted customer emails. Microsoft shares were 2.6% lower in premarket trade.
