# Authentication

After you have linked an account, you can authenticate using the Keyless App. To authenticate, the service you linked will send a push notification to Keyless Authenticator on your smartphone.

Authentication is simple and fast, with a consistent user experience no matter which service you are authenticating to.

![Authentication on the Keyless mobile app.](https://2698856964-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2F-MCE3WRuvAbiNVN-cyQc%2Fuploads%2Fgit-blob-8731bf6731408b3d512fb2f185af1b1f531ecc83%2Fezgif.com-gif-maker.gif?alt=media)

## **Congratulations, you're in!** :sunglasses: