Passkey is Binance's passwordless authentication feature using biometrics (fingerprint or face) instead of passwords. Visit the Binance Official website or Binance Official APP. iPhone users can check the iOS Installation Guide.
Passkeys use public-key cryptography tied to your device's biometric sensors. They're more secure than passwords (can't be phished, reused, or guessed) and more convenient (just use your fingerprint or face). To set up: go to Security Settings → Passkey → Add Passkey → authenticate with your device's biometrics. Once configured, you can log in by simply verifying your fingerprint or face.
Q: What if I lose my device?
A: You can still log in with your password and 2FA. Then set up Passkey on your new device. Passkey is an additional security layer, not a replacement for all other methods.