Please refer to the descriptions provided either to the right of or below the images for an explanation of each step
1.1. Access the Multi-Factor Authentication (MFA) settings page
Access the Multi-Factor Authentication settings page( https://keio.okta.com/enduser/settings )on your smartphone's browser and log in with your keio.jp account (ID and password).
1.2. Under "Security Method," click "Set up" in the "Security key or biometric authenticator" section.
1.3. Verify with your password
Enter your keio.jp account password and tap "Verify."
1.4. Verify with your phone
To verify via SMS, tap "Receive code via SMS." To verify via voice call, tap "Receive a code via SMS."
1.5. Verify with your phone
Enter the verification code sent to your registered phone number (6 digits for SMS or 5 digits for voice call) and tap "Verify."
1.6. Set up security methods
Tap "Set up."
1.7. Setting up a security key or biometric authenticator
Tap "Set up."
1.8. Create a passkey in iCloud Keychain
Tap "Add Passkey."
You will be prompted for Face ID, Touch ID, or your PIN; once authenticated, "Done" will be displayed.
Please note that the registered passkey will be linked to the account currently signed in to Chrome.
1.9. MFA settings page in your browser (Security Methods)
Once authentication is successful, the screen will automatically transition, and the authentication factor will be registered.
End of guide