Microsoft confirms outage affecting MFA, My Sign-Ins platform
Microsoft is investigating an outage affecting MFA setup and access to the My Sign-Ins platform.
Summary
Microsoft is addressing an ongoing incident where some users are unable to set up MFA or access the My Sign-Ins platform. Users are encountering 504 Gateway Timeout errors when trying to access mysignins.microsoft.com. Microsoft has switched to alternative infrastructure to mitigate the impact and is monitoring service telemetry.
Full text
Microsoft confirms outage affecting MFA, My Sign-Ins platform By Sergiu Gatlan June 1, 2026 07:40 AM 0 Microsoft is working to address an ongoing incident preventing customers from setting up multi-factor authentication (MFA) or accessing the My Sign-Ins platform. "We're investigating an issue where some users may be unable to setup MFA or access the http://mysignins.microsoft.com website," the company's Microsoft 365 Status account shared on Twitter earlier today. According to additional information shared in the admin center under MO1329260, those affected by this outage are seeing 504 Gateway Timeout errors. "Some users may be unable to setup Multi-Factor Authentication (MFA) or access the mysignins.microsoft.com website. Users may encounter 504 Gateway Timeout errors when trying to access mysignins.microsoft.com," it said. Since acknowledging the issue, Microsoft has switched to alternative healthy infrastructure to mitigate the impact and has added that it's now monitoring service telemetry to ensure full recovery. "We've completed mitigation actions, including failing over to alternate infrastructure, and are continuing to monitor service health," Microsoft shared in the admin center. "As elevated error rates persist, we're actively evaluating additional mitigation options, including optimizing how service requests are processed to further stabilize the service." While the company has yet to share what regions are affected, it confirmed the issue around 5 AM ET and classified it as an ongoing incident, a flag commonly used to describe critical service issues with noticeable user impact. Earlier this year, Microsoft also resolved a known issue that prevented some Microsoft Teams Free users from chatting and calling others, and an Outlook.com outage that prevented customers from accessing their mailboxes due to intermittent signing-in issues. This is a developing story... The Validation Gap: Automated Pentesting Answers One Question. You Need Six. Automated pentesting tools deliver real value, but they were built to answer one question: can an attacker move through the network? They were not built to test whether your controls block threats, your detection rules fire, or your cloud configs hold.This guide covers the 6 surfaces you actually need to validate. Download Now Related Articles: Microsoft says backend change broke Teams Free chat and callsMicrosoft asks iPhone users to reauthenticate after Outlook outageMicrosoft says Outlook.com outage is causing sign‑in failuresMicrosoft removes Support and Recovery Assistant from WindowsMicrosoft still working to fix Exchange Online mailbox access issues