Once your account has been enabled to use multi-factor authentication for Office 365, the easiest verification method to use is Microsoft Authenticator as a security token. It's just one click instead of typing in a 6-digit code. And if you travel, you won't incur roaming fees when you use it.

Download and install Microsoft Authenticator app

Download and install the Microsoft Authenticator app for:

Steps to configure Multi-Factor Authentication (MFA)

Though it may take a moment, you only need to configure once.

You can follow the video below:

If you cannot view the video, please click here to open the video.

Or you can follow the steps below: (Note: For new staff, you must change your password at The Portal beforehand. You cannot login Office 365 services using the initial password.)

1. Login Office 365 on a web browser.
2. Enter your full email address (e.g. username@eduhk.hk) and click “Next”.
3. You will then see the following screen. Click “Next”.
   


4. Choose “Mobile app” as the primary verification media.
5. Select “Receive notifications for verification” and click “Set up”.
   


6. When you see the following screen, open the Microsoft Authenticator app on your mobile.
   


7. On your phone, open the Microsoft Authenticator app.
8. Click “+” to add an account and choose “Work or school account”.
   


9. Scan the QR code on the computer. (Notes: iPhone users may have to enable the camera in Settings in order to scan.)
   


10. If you can't use your phone camera, you'll have to manually enter the 9 digit code and the URL that shown on your computer (Refer to step 6).
11. You will be shown a six-digit code and your account is added.
    


12. Click “Next” on your computer and wait for the configuration to complete.
13. Switch back to your computer and click "Done".
14. Now wait for the Checking activation status text to finish configuring your phone.
    


15. When it's complete, click "Next" to continue.
16. Switch back to your phone and You will then receive a notification on your mobile.
    


17. Click “Approve” on the app as the second step of verification.
    


18. Back on the computer, Complete the setup procedure as instructed on the computer.
19. In some apps (such as Outlook, Apple Mail), you can't use a phone to secure your account. Copy and save the password for use with this kind of apps. For details, please refer to Create an app password for Office 365.
    


20. You're good to go!
21. From now on, whenever you have a new sign in or add your Office 365 account to an app, you'll open the Authenticator app on your phone and tap Approve.

Note: If you want to use phone call for verification in step 4 above, please choose "Authentication Phone". Choose the correct country code (e.g. Hong Kong +852) and enter your office phone number or mobile number.