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.
We're developing a fix to address issues associated with Multi-Factor Authentication. Admins, please see MO165510 on the dashboard or https://t.co/AEUj8uj65N for more information.
— Microsoft 365 Status (@MSFT365Status) November 19, 2018
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.
The beauty of cloud computing; having full control and access to your data ?
— Sheryl Crow (@JustRoaming) November 19, 2018