Office 365 service health status
Title: Unable to sign in to Microsoft 365 services
User impact: Affected users may be unable to sign in using Multi-Factor Authentication (MFA).
More info: Users may also be unable to carry out self-service password resets.
Current status: We're continuing to see increased success with MFA requests and are actively investigating the underlying source of the issue.
Scope of impact: Impact may be experienced by users accessing Office 365 services via Multi-Factor Authentication.
Start time: Monday, November 19, 2018, at 4:39 AM UTC
Next update by: Monday, November 19, 2018, at 9:00 PM UTC
View your Office 365 service health dashboard.