Use this option if you want to store your passkey in the Microsoft Authenticator app on your mobile device. Microsoft recommends the Authenticator-based passkey experience because it combines MFA, passwordless sign-in, and passkey management in a single app. 

Before You Begin

• The Microsoft Authenticator app must be installed on your mobile device.
• Your ISU account must be added to Microsoft Authenticator. If you have not already set up Microsoft Authenticator, follow the instructions in Setting Up Multi-Factor Authentication Using the Mobile App before continuing.

Create the Passkey

1. Select Passkey in Microsoft Authenticator.

2. Open the Microsoft Authenticator app.

3. Click on your ISU account.

4. Select Create a Passkey.

5. A pop-up will open confirming that you have the Microsoft Authenticator app installed. Click Next.

6. A pop-up will open telling you to open the Authenticator app and to select your ISU account. Leave this pop-up open until we have finished creating the passkey in the Authenticator app.

7. Follow the instructions in the app based on your type of phone:

• • Android Devices

  1. When prompted, open your phone's Settings and go to Passwords & Accounts.
  2. Enable Microsoft Authenticator as a passkey provider.
  3. Return to Microsoft Authenticator. There will be a confirmation that Microsoft Authenticator is now a passkey provider. Click Continue.
  4. Authenticate using your fingerprint, face recognition, or device PIN. There will be a confirmation that the passkey was created. Click Done.

• • iPhone and iPad Devices

  1. When prompted, select Settings.
  2. Open the Settings app on your device.
  3. Navigate to:
     • Settings > General > Autofill & Passwords (iOS 18), or
     • Settings > Passwords > Password Options (iOS 17).
  4. Ensure AutoFill Passwords and Passkeys are enabled.
  5. Confirm that Microsoft Authenticator is selected as a passkey provider.
  6. Return to Microsoft Authenticator and select Done.
  7. Use Face ID, Touch ID, or your device PIN to create the passkey.

8. Return to the pop-up from step 6, and click Done. You will receive a verification window confirming that your passkey has been created and that it has been added to your sign-in methods.

Using Your Passkey

When signing in to an ISU resource using Central Login, select the passkey option and verify your identity using your device's fingerprint, face recognition, or PIN. Make sure Microsoft Authenticator remains installed and configured as a passkey provider on your device.

Additional Resources

Microsoft Support article: Register passkeys in Authenticator on Android and iOS devices