Passkeys: what they are, how they work and how they differ from passwords
Passkeys are FIDO cryptographic credentials that replace passwords by using device unlock methods to sign in. The FIDO Alliance, Google, and Apple explain security, syncing, setup, and differences from passwords and legacy second factors.
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How passkeys are defined
A passkey is an authentication credential based on FIDO standards that can be stored on your phone or computer or in a hardware security key, allowing a user to sign in to apps and websites with the same process that they use to unlock their device.
Passkeys are a replacement for passwords that are designed to provide websites and apps a passwordless sign-in experience that is both more convenient and more secure.
You can use passkeys as a simple and secure alternative to passwords by signing in with fingerprint, face scan, or phone screen lock such as a PIN. (Source: Google Account Help)
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