PASSKEYS-DETAIL

Multi-device synced FIDO2 credentials.

Definition

Passkeys use multi-device FIDO credentials (October 2022 FIDO Alliance spec). Cross-device authentication via QR Code + Bluetooth proximity. End-to-end encrypted cloud sync. Adopted by Apple iOS 16, Google Android 14, Microsoft Windows 11 Build 25881 (April 2024). 7+ billion accounts in 2024.

Origin

FIDO Alliance multi-device FIDO credentials spec October 2022.

Example in context

An Amazon user enables passkey on iPhone, can sign in automatically from Mac with no new enrollment.

Related terms

• WebAuthn — browser API support.