Contact your administrator and ask them to enable multi-factor authentication for your account….

Make sure that you have entered the correct password and verification code, and that there are no issues with your chosen verification method….

In addition to phone SMS and authenticator apps, you can also use other verification. Other verification methods can be viewed and selected in the Additional security verification page by following…

You can set up the Microsoft Authenticator app on five different devices. Important: If you’ve used five hardware tokens, you won’t be able to set up a sixth one, and…

Not all methods can be used for both. Please refer to the table below….

If you no longer want to use your authenticator app as a security info method, you can remove it from the Security info page. This works for all authenticator apps,…

For example, Phone authentication. Check at https://mysignins.microsoft.com/security-info Login your M365 account, the following screen will appear on your computer. Choose security info, “Add sign-in method’’. Choose Phone Add “Enter phone…

If you want the authenticator app to be the default method used when you sign-in to your work or school account using two-factor verification or for password reset requests, you…