Patent ID: 8166068

Claim:
A system for authorization of a transaction with a financial card, the system comprising: a mobile communications device, wherein the device is configured to: receive a set of data identifying the location of the device; and transmit a communications signal which comprises the set of data and an identifier unique to the device; and a database which comprises a table of identifiers, wherein, each identifier in the table is unique to one of a plurality of mobile communications devices; each identifier in the table is associated with at least one financial card number; the table of identifiers includes the identifier unique to the device, and the identifier unique to the device is: associated with a first specified distance for a first geographic region, the first specified distance comprising a maximum distance allowed between the location of the device and location of a transaction when the device is located in the first geographic region; and associated with a second specified distance for a second geographic region, the second specified distance different from the first specified distance and the second geographic region distinct from the first geographic region, wherein the second specified distance comprises a maximum distance allowed between the location of the device and the location of a transaction when the device is located in the second geographic region; and the first specified distance, the second specified distance, or the first and second specified distances are variable with time and according to the location of the device; and a location comparison server, in communication with the device and the database, wherein the server is configured to: receive the communications signal; store the set of data from the communications signal in the database; receive a request for authorization of a transaction with a financial card number and data identifying the location of the transaction, wherein the financial card number is associated with the identifier unique to the device; determine that the location of the device is within the first geographic region and thereby identify the first specified distance instead of the second specified distance; and authorize the transaction based at least in part on a determination that the device is within the first specified distance of the location of the transaction.