"The generic name for this technology is RFID, which stands for radio frequency identification. RFID tags are miniscule microchips, which already have shrunk to half the size of a grain of sand. They listen for a radio query and respond by transmitting their unique ID code. Most RFID tags have no batteries: They use the power from the initial radio signal to transmit their response.
You should become familiar with RFID technology because you'll be hearing much more about it soon. Retailers adore the concept, and CNET News.com's own Alorie Gilbert wrote last week about how Wal-Mart and the U.K.-based grocery chain Tesco are starting to install 'smart shelves' with networked RFID readers. In what will become the largest test of the technology, consumer goods giant Gillette recently said it would purchase 500 million RFID tags from Alien Technology of Morgan Hill, Calif....
It becomes unnervingly easy to imagine a scenario where everything you buy that's more expensive than a Snickers will sport RFID tags, which typically include a 64-bit unique identifier yielding about 18 thousand trillion possible values. KSW-Microtec, a German company, has invented washable RFID tags designed to be sewn into clothing. The European central bank is reportedly considering embedding RFID tags into banknotes by 2005.
That raises the disquieting possibility of being tracked though our personal possessions. Imagine: The Gap links your sweater's RFID tag with the credit card you used to buy it and recognizes you by name when you return. Grocery stores flash ads on wall-sized screens based on your spending patterns, just like in 'Minority Report.' Police gain a trendy method of constant, cradle-to-grave surveillance.
You can imagine nightmare legal scenarios that don't involve the cops. Future divorce cases could involve one party seeking a subpoena for RFID logs--to prove that a spouse was in a certain location at a certain time. Future burglars could canvass alleys with RFID detectors, looking for RFID tags on discarded packaging that indicates expensive electronic gear is nearby. In all of these scenarios, the ability to remain anonymous is eroded.
Don't get me wrong. RFID tags are, on the whole, a useful development and a compelling technology. They permit retailers to slim inventory levels and reduce theft, which one industry group estimates at $50 billion a year. With RFID tags providing economic efficiencies for businesses, consumers likely will end up with more choices and lower prices. Besides, wouldn't it be handy to grab a few items from store shelves and simply walk out, with the purchase automatically debited from your (hopefully secure) RFID'd credit card?
The privacy threat comes when RFID tags remain active once you leave a store. That's the scenario that should raise alarms--and currently the RFID industry seems to be giving mixed signals about whether the tags will be disabled or left enabled by default....
If you care about privacy, now's your chance to let the industry know how you feel. (And, no, I'm not calling for new laws or regulations.) Tell them that RFID tags are perfectly acceptable inside stores to track pallets and crates, but that if retailers wish to use them on consumer goods, they should follow four voluntary guidelines.
First, consumers should be notified--a notice on a checkout receipt would work--when RFID tags are present in what they're buying. Second, RFID tags should be disabled by default at the checkout counter. Third, RFID tags should be placed on the product's packaging instead of on the product when possible. Fourth, RFID tags should be readily visible and easily removable." [ZDNet]
As a consumer, RFID should be on your radar for how it will affect you personally. Librarians should be aware of these issues because new security systems will use RFID.
Monday, January 13, 2003
