Was the Microsoft 365 outage a hack? Microsoft says no, it was its own servers, and its Copilot boss “regrets” it
windowslatest.com Nov 13, 2026

Was the Microsoft 365 outage a hack? Microsoft says no, it was its own servers, and its Copilot boss “regrets” it

AI-summarised brief · reviewed before publication

Microsoft confirmed that the worldwide Microsoft 365 outage, which began at 8:30 a.m. PT on November 12, was caused by overloaded internal servers rather than a cyberattack. Executive Vice President Charles Lamanna, head of Copilot, Agents and Platform, said the company “deeply regrets” the disruption that left millions unable to access Outlook, Teams, SharePoint and Copilot. Microsoft’s health center timeline shows the issue escalated as servers became unavailable, prompting traffic rerouting and a configuration change that began stabilizing services by mid‑afternoon, though full capacity remained unrecovered into the early hours of November 13. The outage, the worst in the firm’s history, continues to affect users despite patches and health checks, prompting calls for SLA‑based compensation.

💡 Why It Matters

  • · The incident exposes the fragility of cloud‑centric work ecosystems when a single provider’s infrastructure falters.