A passkey is a credential stored securely on your device and protected by your device's built-in authentication, such as Face ID, Touch ID, Windows Hello, or your screen lock. Passkeys are considered one of the most secure and convenient methods of 2FA because there's no code to type in and nothing physical to carry. You simply confirm your identity using your device when prompted. Make sure your device supports passkeys (most modern phones, tablets, and computers with biometric or screen-lock authentication do).
Why should I use a Passkey instead of an authenticator app?
Simplicity All you need to do with a passkey is confirm your identity through your device's existing authentication, like Face ID or your screen lock. No need to copy a passcode from an authenticator app or worry about your device's battery running out.
Security Passkeys use public-key cryptography and are tied to the website they were created for, which means they can't be phished or reused on a fake site the way a typed code can.
Harder to lose A passkey is tied to your device or device ecosystem rather than being something separate you have to carry, so there's nothing extra to misplace.
Privacy A passkey never leaves your device and Kraken never sees or stores it, only the public key used to verify you.