Log in to Office 365, click your profile photo in the top right corner, and select view account.
Please note: Before using the Authenticator app, OIT recommends registering a phone number for authentication. If you only use the authenticator app you may be locked out of your account temporarily if you lose or replace your mobile phone.
Download the app from the link on your screen or visit Microsoft's Authenticator App page for direct links to the Apple and Google Play app stores, or to get a download link sent to your phone.
Your Security info page will now show that the authenticator app is the default sign-in method. Return to this page if you change devices or want to switch back to receiving text or phone calls for sign-in.
Please note: You may be prompted to re-authenticate to multiple Office 365 servers (e.g. Teams, Outlook, etc.).