This paper suggests the use of a new authentication system for credit cards based on biometric sensors that could dramatically curtail identity theft. The proposed system uses fingerprint sensors, though other biometric technologies, either alone or in combination, could be incorporated...

Abstract: "A method of selecting a financial account to be used to make a payment and a mobile station (105) that may implement the method. The method can include identifying at least one of a plurality of user profiles during a payment transaction at a point-of-sale terminal (110). The method also can include selecting from a plurality of available financial accounts at least one financial account that is associated with the identified user profile and making the payment using the selected financial account."

The usage of fingerprint overlaps.