Update: Tuesday 20th June 2023, 9.05am

This issue has been reported as resolved by Microsoft. 

Update: Monday 19th June 2023, 4.40pm

Microsoft have advised us that service is improving but that the issue is not fully resolved yet.

First posted: Monday 19th June 2023, 3.25pm

We have been advised by Microsoft that users in North Europe, including Trinity College Dublin, may be unable to log in to Microsoft 365 services using Multi-Factor Authentication (MFA).

Microsoft is currently looking into this issue. We will update you here as soon as we know more.