Clerk adds passkeys as an MFA second factor

If your application was created before July 8, 2026, turn on Passkeys satisfy multi-factor authentication under Sign-in with passkey on the User & authentication⁠ page. Newer applications already have it on, and native apps offer the passkey second factor once it's on.

When users sign in with a password, a social connection, or a reset-password code, they can use their passkey instead of an SMS code or authenticator app, including during reverification. In <SignIn /> and the reverification modal, users who have a passkey start on the passkey