Patent ID: 7920063

Claim:
A method, comprising: transmitting an interrogation signal from a Radio-Frequency Identification (RFID) reader; receiving a response signal from an RFID tag; determining if a product associated with the RFID tag is RFID secured based on the response signal; determining a direction of movement of the RFID tag in relation to an access point of a store based on the response signal; when the RFID tag is determined to be exiting the access point of the store, determining if the product is authorized to exit the store by: consulting a product transaction database to determine whether the product has been validly purchased; if the product is validly purchased, identifying the product as authorized to exit the store; if the product is not validly purchased, consulting an inventory tracking database to determine whether the product has ever been in a supply chain of the store, if the product has not been in a supply chain of the store, identifying the product as authorized to exit the store, if the product has been in the supply chain of the store, identifying the product as not authorized to exit the store, and when the product is not authorized to exit the store, providing an alarm to indicate the product is not authorized to exit the store.