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On October 9, 2025, a Microsoft authentication failure caused global outages across Teams, Azure, and other services, disrupting users worldwide.
On October 9, 2025, a global outage disrupted major Microsoft services including Teams, Microsoft 365, Azure, and Minecraft, affecting users worldwide.
The issue stemmed from a failure in Microsoft’s authentication systems, particularly the Entra single sign-on platform and Multi-Factor Authentication, causing widespread login problems and error messages.
Significant capacity loss across 21 Azure Front Door environments in Europe and Africa was linked to load balancing infrastructure failures, triggering cascading outages.
Microsoft confirmed it was actively investigating, restoring services through failover procedures and infrastructure rebalancing.
While approximately 98% of the Azure Front Door service was restored, some users continued to experience intermittent issues.
The incident is part of a pattern of recurring reliability concerns with Microsoft’s cloud infrastructure, impacting businesses, students, and gamers.
El 9 de octubre de 2025, una falla de autenticación de Microsoft causó interrupciones globales en Teams, Azure y otros servicios, interrumpiendo a los usuarios en todo el mundo.