Register a passkey using a mobile device

This article shows how to register a security key with your iOS or Android device.

You can also register passkeys in Microsoft Authenticator on your mobile device. With an Authenticator passkey, you can have seamless single sign-on (SSO) to other Microsoft native apps, like Teams or Outlook. For more information, see How to enable passkeys in Microsoft Authenticator.

iOS

Register a passkey with iOS

1. Using your iOS device, open a web browser and sign-in to Security info.

2. Tap + Add sign-in method.

3. Select Passkey.

4. Tap Add.

5. Sign in with multifactor authentication (MFA) before adding a passkey.

6. Select Next.

7. Your device opens a security window. Choose Other Options.

8. Select Security key.

   Note

   Depending on the screen size and orientation of your iOS device, you may need to scroll down to see this option.

9. Connect your security key to your iOS device.

10. Provide your PIN or biometric.

    Note

    If a PIN isn't configured for this security key, you need to first enroll a PIN before you continue registration.

11. Reinsert or reconnect your security key to your iOS device.

12. Upon completion, you're redirected back to Security info and asked to rename your passkey. Name the passkey something memorable to you and select Done.

Android

Register a security key with Android

1. Using your Android device, open a web browser and sign-in to Security info.

2. Tap + Add sign-in method.

3. Select Passkey.

4. Tap Add.

5. Sign in with multifactor authentication (MFA) before adding a passkey.

6. Select Next.

7. A security window opens on your device asking where you want to create your passkey.

8. Select Save another way.

   Note

   Options displayed vary depending on the manufacturer and Android OS version of your device. For example, this option may appear as Use a different device.

9. You may see various options, depending on the number of Google accounts or passkey managers enabled on your device. Select Another device to continue.

10. Select USB security key.

11. Connect your security key to your Android device.

12. Provide your PIN or biometric.

    Note

    If a PIN isn't configured for this security key, you need to first enroll a PIN before you continue registration.

13. You may be asked to confirm your PIN or biometric again before proceeding.

14. Upon completion, you're redirected back to Security info and asked to rename your passkey. Name the passkey something memorable to you and select Done.

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• Choosing authentication methods for your organization