Set up Multifactor Authentication (MFA) using Microsoft Authenticator

This is for first-time setup of MFA to use Microsoft Authenticator app as a sign-in method. If you already have an existing sign-in method, refer to Set up alternate Multifactor Authentication (MFA) sign-in method.

Before you proceed, you would need both a computer and mobile device to set up MFA.

Follow the steps below to download Microsoft Authenticator for your Android or iOS device and set up your MFA.

1. Download Microsoft Authenticator   from Google Play Store or Apple App Store

To install Authenticator app for Android device, scan QR code below	To install Authenticator app for iOS device, scan QR code below

2. On your computer, go to https://aka.ms/mfasetup
3. If prompted to login, enter your <userID>@nus.edu.sg (for staff/visitor) or <userID>@u.nus.edu (for student), and click Next 

4. Sign in with your NUS-ID and Password
5. When prompted for “More information required”, click Next

6. As you have already installed Microsoft Authenticator in Step 1, click Next to proceed

7. On your mobile phone, launch the Microsoft Authenticator app:
   - For first time setup, you will be prompted to allow notification for Microsoft Authenticator and to add account
   - If you are already using Microsoft Authenticator previously, you can add account by tapping the “+” icon on the top of the Authenticator page
   - Tab Work or school account and tab Scan a QR code
   On your computer, click Next to proceed.

8. Use your Microsoft Authenticator app to scan the QR code and follow the instructions on your phone to connect with your account. Once completed, click Next to proceed.

9. A test notification will be sent to your Microsoft Authenticator app. Enter the matching number on your phone.  

10. Once approved, you will get the following screen. Click Next to continue.

11. You have successfully set up your MFA. Click Done to complete the setup.

Note: The next time you sign-in to any Microsoft services using your NUS account, you might also be prompted to approve the sign in request on your Microsoft Authenticator app.

Technical Notes

Related articles:
About Microsoft Multifactor Authentication (MFA) 
System requirements for Microsoft Authenticator
Change Multifactor Authentication (MFA) device 
Forgot Multifactor Authentication (MFA) device 
Lost Multifactor Authentication (MFA) device 
Approve Multifactor Authentication (MFA) request without data connectivity 
Set up Multifactor Authentication (MFA) for multiple devices/accounts 
Set up and use Microsoft Authenticator in areas without Google Play Store/Apple App Store
Troubleshoot common problems with Multifactor Authentication (MFA)