A passkey is a passwordless sign-in method that replaces traditional passwords with cryptographic keys stored securely on your device. In the past, secure logins often relied on a password plus an extra step, such as a one-time code sent to your phone or an authentication app. While these methods added security, they still depended on passwords, which are frequently weak, reused, or stolen. This guide shows how to setup a passkey in macOS as well as third-party app.
