Outlook, Teams, Copilot, and more are inaccessible for millions
appleinsider.com Nov 13, 2026

Outlook, Teams, Copilot, and more are inaccessible for millions

AI-summarised brief · reviewed before publication

Microsoft’s cloud platform suffered a worldwide outage that began around 1:00 p.m. Eastern on Thursday, November 12, 2026, and persisted for more than 17 hours, disabling Outlook, Teams, Copilot and the entire Exchange service for millions of users. The disruption spread across multiple Microsoft 365 applications, prompting hourly status updates that initially reported slow repair progress and later noted “early signs of stabilization.” By 6:00 a.m. Eastern the company said recovery actions in the Asia‑Pacific region had restored some traffic and improved mailbox access, though intermittent problems remained. Microsoft emphasized no evidence of malicious activity and pledged continued mitigation. The incident follows an October change to Exchange Web Services that had previously affected Apple Mail. Enterprise customers reported lost productivity while small businesses struggled to meet deadlines. Many firms faced delayed communications and halted project workflows today.

💡 Why It Matters

  • · The outage exposed the fragility of corporate reliance on a single cloud provider, forcing organizations to reconsider continuity plans while highlighting the cascading risk of a unified service architecture.