Microsoft 365
Set up two-step sign-in with Microsoft Authenticator
Multi-factor authentication (MFA) adds a second check when you sign in, blocking most account takeover attempts. Here is how to set up Microsoft Authenticator.
Self-help article4 min readHelp is one ticket away
Before you start
- Have your work computer and your smartphone ready
- Install the free Microsoft Authenticator app from the Apple App Store or Google Play
Set it up
- On your computer, go to mysignins.microsoft.com/security-info and sign in with your work account.
- Click Add sign-in method and choose Authenticator app.
- Follow the prompts until a QR code appears on your screen.
- On your phone, open Authenticator, tap the plus sign, choose Work or school account, then Scan QR code.
- Scan the QR code on your computer screen.
- Approve the test notification on your phone to finish.
We recommend also adding a phone number as a backup method in case you change or lose your phone.
Signing in day to day
When you sign in, you will see a number on your computer. Enter that number in the Authenticator notification on your phone to approve the sign-in.
If you receive an Authenticator request you did not start, deny it and report it to us immediately. Someone may have your password.
Getting a new phone?
Set up Authenticator on the new phone before wiping the old one, or contact us and we will help you re-register.
Still need help?
If these steps did not solve the problem, our team is ready to help.