Passkey logins

Passkey are a replacement for passwords and are already supported by all major platforms. When a user is asked to sign in to an app or website, they approve the login using the same biometric or PIN that they use to unlock the device (phone, computer, or security key). The app or website can use this mechanism instead of the traditional (and insecure) username and password.

For more information, see: https://fidoalliance.org/passkeys/