It’s PKI replacing shared secrets, with a user friendly UX. For the 900 million active iPhone users in the world, it’s a net positive, not to mention the 3 billion Android users who will also benefit from this open standard (as Google has also committed to supporting passwordless FIDO2/WebAuthN).

Credential stuffing, weak passwords, password database leaks, all solved for with passkeys and leveraging existing smartphone ecosystem security mechanisms. Over time, your casual user might not even need a password manager anymore: your mobile OS is the password manager.