Passkeys Offer Phishing-Resistant Security Through Unique Key Pairs

A passkey is a unique cryptographic key pair that a user's device generates for each specific website, with only the public key stored by the server. This design prevents phishing attacks because a signature created during login includes the website's origin, making it invalid for fraudulent look-alike domains. Industry data shows passkeys have significantly higher successful sign-in rates compared to traditional passwords. However, the core security feature that blocks phishing also means the private keys are designed to be non-exportable by default, though cross-platform transfer protocols are under development.