# passkey_assertion_failed (/api/errors/passkey_assertion_failed)



<ErrorMeta code="passkey_assertion_failed" />

## When this happens [#when-this-happens]

Your authenticator produced a signature that did not verify against the stored
public key. This can follow a corrupted credential, a mismatched origin (for
example, signing in from a different domain than the one you registered), or a
browser extension interfering with WebAuthn.

## How to fix it [#how-to-fix-it]

Try the sign-in again. If it keeps failing, register a new passkey from a
trusted device on the official domain, or sign in with Google/GitHub and add a
fresh passkey from settings. The response message includes a specific reason
after the colon.