Given that Office 365 is a user service, the enabling of multi-factor authentication is very much as admin driven action – that is the administrators decide that the users should have it, or that it is is configured via Conditional Access when limiting the login for the user to certain applications and locations.
For a more security conscious user, enabling it themselves if harder! To do this, follow these steps:
- Go to My Apps – https://myapps.microsoft.com
- Click your picture icon top right and choose Profile from the menu
- Click Additional Security Verification from the menu to the right
- Select your preferred method of second factor of authentication from the first drop-down box. You need to ensure that the option you choose is enabled below.
You will now be prompted for your second authentication factor that you choose when you try to do a password change or change your verification info.