Update your device and browser or app to the latest version
Make sure your device supports passkeys
Sign in to the account you want to protect
Open the account security or sign-in settings
Select the option to add or create a passkey
Verify your identity with your current password, PIN, fingerprint, or face recognition
Follow the prompts to save the passkey on your device
Choose a backup method if offered, such as syncing through your account provider
Repeat the setup on other trusted devices if needed
Test the passkey by signing out and signing back in
Store recovery options securely in case you lose access to your device