Azure Active Directory hit by multi-factor authentication issue, Microsoft is working on a fix

Laurent Giret

If you have been unable to access Office 365 services today, you’re not alone. Earlier this morning, Microsoft has acknowledged a multi-factor authentication issue with Azure Active Directory, which prevents Office 365 users to sign in via MFA solutions like Microsoft’s own Authenticator app.

Microsoft said on Twitter and the Office 365 health status page that it has already developed a fix. In the latest update, they shared that it’s “continuing to investigate data to understand why users are no longer receiving prompts via the app.”

Multi-factor authentication is a pretty great security feature, but when it goes down like it did today that can be a huge headache in companies where MFA is required by policy. As a matter of fact, many IT admins have been complaining on Twitter today that such a long outage is unacceptable.

We’ll update this post once this MFA issue is fully resolved, in the meantime we invite you to check and the MSFT365Status Twitter account for live updates.