Abstract: A system, device, and method for authorizing transactions of a plurality of applications. The system comprises a plurality of application servers operable to authorize transactions of applications and a plurality of user devices. Each transaction authorization is dependent upon receipt, by the authorizing server, of a transmitted code verified by the server as being an appropriate transaction code for the selected application. Each user device is operable to verify the identity of a user by comparing real-time biometric input from the user with data derived from biometric input provided by the user during device initialization. Each user device is further operable to select an application from among a plurality of applications and to emit a non-repeating non-guessable transaction code appropriate for the selected application. Emission of the transaction code is dependent upon biometric verification, by the user device, of the user's identity.

Abstract: Device, system and method for authorizing a transaction requested by an authorized user while preventing authorization of a transaction requested by an unauthorized user. The system comprises a user device and a server device. The user device comprises (a) an identity verification unit operable to receive current biometric input from a current user and to utilize that biometric input to determine if the current user is an authorized user of the device; (b) a transaction code provider operable to provide a transaction code if, and only if, the identity verification unit determines that a current user is an authorized user; and (c) a first communication device operable to communicate the provided transaction code.