Patent ID: 8682745

Claim:
A computer system configured to selectively block a remote purchase request in which a purchaser attempts to use a card number to make a remote purchase of an item from a vendor, the computer system comprising: a data input subsystem including a physical interface configured to receive (i) information from a purchase request information set including an origin of the purchase request representing either a telephone number or internet address, a card number, a requested item identification, and a number of requested items, and (ii) a current remote purchase request information set; a physical memory subsystem including non-transient storage media configured to store the received information and the current remote purchase request information set; a physical processor configured to implement a logic subsystem configured: to determine whether the number of items in remote purchase requests from the origin in a same class as the requested item exceeds a threshold number of such items; and to block the remote purchase request responsive to the number of items in the same class as the requested item purchased from the origin exceeding the threshold number of such items.