Passkey
A modern, phishing-resistant sign-in credential based on public-key cryptography that replaces traditional passwords.
A passkey↗ is a modern, phishing↗-resistant way to sign in to an account that replaces traditional typed passwords with cryptographic key pairs stored securely on your device, typically unlocked with your fingerprint, face, or device PIN. Because there's no password to type or steal, passkeys are immune to the phishing and credential-stuffing attacks that plague traditional passwords.
When you set up a passkey, your device generates a unique public-private key pair for that specific account: the public key is stored by the service, while the private key never leaves your device. Major platforms including Google, Apple, and Microsoft now support passkeys broadly, and adoption is accelerating precisely because they're both more secure and more convenient than passwords for most users.