While barcode-type RFID tags are not likely to reach consumers on a regular basis in near future, there is little doubt that with success of early trials, they eventually will. Consequently, concerns about privacy infringement with regard to RFID are important not only in theoretical sphere, but increasingly such discussions have vital practical applications.

SPECIFIC PRIVACY CONCERNS

RFID tags differ from conventional barcode tags in a number of ways. It is these differences that create benefit of adopting technology, while simultaneously creating greatest concern over privacy issues involved. For example, under today's bar code technology, a pack of Wrigley's Gum sold in Houston, Texas has same barcode as a pack sold in New York City or Ontario. With RFID, however, each pack would have a unique ID code which could be tied to purchaser of that gum when they use an 'item registration system' such as a frequent shopper card or a credit card.

Continuing with Gum example, purchaser could then be tracked if he/she ever entered that same store again, or perhaps more frightening, if they entered any other store with RFID reading capability. Because unlike a barcode, RFID can be read at a distance of up to a few yards. Meaning that if you enter a store with a pack of gum in your pocket, reader can identify that pack of gum, time and date you bought it, where you bought it, and how frequently you come into store. If you used a credit card or a frequent shopper card to purchase it, manufacturer and store could also tie that information to your name, address, and email. You could then receive targeted advertisements by gum companies as you walk down aisle, or receive mailings through your e-mail or snail mail about other products.