Pragmatic and Practical Security is Better than Hard-line Security

The Azure AD sign-in frequency controls how often accounts must reauthenticate. Setting an unreasonably short value makes it more difficult for people to work because Azure AD constantly nags for credentials, including MFA challenges. I experienced the effect of such a policy last week and it wasn’t nice. Security policies need to be practical and pragmatic as well as effective.

https://office365itpros.com/2023/03/14/azure-ad-sign-in-frequency-guests/