A sweeping configuration failure in Microsoft’s global edge fabric on October 29, 2025, left Microsoft 365, the Azure Portal, Xbox Live, Minecraft, Microsoft Copilot and the Microsoft Store intermittently inaccessible for millions of users and caused hundreds of third‑party websites that rely on Azure Front Door to return gateway errors—an incident engineers traced to an inadvertent change in Azure Front Door that produced DNS and routing anomalies and forced Microsoft to roll back to a...