Patent attributes
Mobile device-based authentication is disclosed. A first biometric input corresponding to a first biometric feature of the user is captured on the mobile device. A first set of biometric data is derived from the captured first biometric input. The first set of biometric data is transmitted to a remote authentication server. Thereafter, a secondary authentication instruction is transmitted to the site resource in response. Access to the site resource is permitted based upon a validation of the first set of biometric data, and a second biometric input that is captured on the site resource in response to the secondary authentication instruction received thereon. The first set of biometric data and the second set of biometric data are validated by remote authentication server substantially contemporaneously.