Chris Paget, a self-described “ethical hacker,” shows how personal data can be easily obtained from unknowing people carrying identity cards embedded with radio frequency identification, or RFID, tags, such as enhanced driver’s licenses or NEXUS border crossing cards.
Climbing into his Volvo, outfitted with a Matrics antenna and a Motorola reader he’d bought on eBay for $190, Chris Paget cruised the streets of San Francisco with this objective: To read the identity cards of strangers, wirelessly, without ever leaving his car.
It took him 20 minutes to strike hacker’s gold.
Zipping past Fisherman’s Wharf, his scanner detected, then downloaded to his laptop, the unique serial numbers of two pedestrians’ electronic U. S. passport cards embedded with radio frequency identification, or RFID, tags. Within an hour, he’d “skimmed” the identifiers of four more of the new, microchipped PASS cards from a distance of 20 feet.
Embedding identity documents— passports, drivers licenses, and the like — with RFID chips is a no-brainer to government officials. Increasingly, they are promoting it as a 21st century application of technology that will help speed border crossings, safeguard credentials against counterfeiters, and keep terrorists from sneaking into the country.
But Paget’s February experiment demonstrated something privacy advocates had feared for years: That RFID, coupled with other technologies, could make people trackable without their knowledge or consent.
He filmed his drive-by heist, and soon his video went viral on the Web, intensifying a debate over a push by government, federal and state, to put tracking technologies in identity documents and over their potential to erode privacy.
Putting a traceable RFID in every pocket has the potential to make everybody a blip on someone’s radar screen, critics say, and to redefine Orwellian government snooping for the digital age.
“Little Brother,” some are already calling it — even though elements of the global surveillance web they warn against exist only on drawing boards, neither available nor approved for use.
But with advances in tracking technologies coming at an ever-faster rate, critics say, it won’t be long before governments could be able to identify and track anyone in real time, 24-7, from a cafe in Paris to the shores of California.
The key to getting such a system to work, these opponents say, is making sure everyone carries an RFID tag linked to a biometric data file.
On June 1, it became mandatory for Americans entering the United States by land or sea from Canada, Mexico, Bermuda and the Caribbean to present identity documents embedded with RFID tags, though conventional passports remain valid until they expire.
Among new options are the chipped “e-passport,” and the new, electronic PASS card — credit-card sized, with the bearer’s digital photograph and a chip that can be scanned through a pocket, backpack or purse from 30 feet.
Alternatively, travelers can use “enhanced” driver’s licenses embedded with RFID tags now being issued in some border states: Washington, Vermont, Michigan and New York.
New York issues its enhanced driver’s licenses with a sheath that blocks the RFID signal while inside.
The purpose of using RFID is not to identify people, says Mary Ellen Callahan, the chief privacy officer at Homeland Security, but rather “to verify that the identification document holds valid information about you.”
Likewise, U. S. border agents are “pinging” databases only to confirm that licenses aren’t counterfeited. “They’re not pulling up your speeding tickets,” she says, or looking at personal information beyond what is on a passport.
The change is largely about speed and convenience, she says. An RFID document that doubles as a U. S. travel credential “only makes it easier to pull the right record fast enough, to make sure that the border flows, and is operational” — even though a 2005 Government Accountability Office report found that government RFID readers often failed to detect travelers’ tags.
Such assurances don’t persuade those who liken RFID-embedded documents to barcodes with antennas and contend they create risks to privacy that far outweigh the technology’s heralded benefits. They warn it will actually enable identity thieves, stalkers and other criminals to commit “contactless” crimes against victims who won’t immediately know they’ve been violated.
Neville Pattinson, vice president for government affairs at Gemalto, Inc., a major supplier of microchipped cards, is no RFID basher. He’s a board member of the Smart Card Alliance, an RFID industry group, and is serving on the Department of Homeland Security’s Data Privacy and Integrity Advisory Committee.
Still, Pattinson has sharply criticized the RFIDs in U. S. driver’s licenses and passport cards. In a 2007 article for the Privacy Advisor, a newsletter for privacy professionals, he called them vulnerable “to attacks from hackers, identity thieves and possibly even terrorists.”
RFID, he wrote, has a fundamental flaw: Each chip is built to faithfully transmit its unique identifier “in the clear, exposing the tag number to interception during the wireless communication.”
Once a tag number is intercepted, “it is relatively easy to directly associate it with an individual,” he says. “If this is done, then it is possible to make an entire set of movements posing as somebody else without that person’s knowledge.”
Could RFID numbers eventually become de facto identifiers of Americans, like the Social Security number?
Such a day is not far off, warns Katherine Albrecht, a privacy advocate and co-author of “Spychips,” a book that is sharply critical of the use of RFID in consumer items and official ID documents.
“There’s a reason you don’t wear your Social Security number across your T-shirt,” Albrecht says, “and beaming out your new, national RFID number in a 30-foot radius would be far worse.”
But Gigi Zenk, a spokeswoman for the Washington state Department of Licensing, says Americans “aren’t that concerned about the RFID, particularly in this day and age when there are a lot of other ways to access personal information on people.”
Tracking an individual is much easier through a cell phone, or a satellite tag embedded in a car, she says. “An RFID that contains no private information, just a randomly assigned number, is probably one of the least things to be concerned about, frankly.”
Still, even some ardent RFID supporters recognize that these next-generation RFID cards raise prickly questions.
Mark Roberti, editor of RFID Journal, an industry newsletter, recently acknowledged that as the use of RFID in official documents grows, the potential for abuse increases.
“A government could do this, for instance, to track opponents,” he wrote in an opinion piece discussing Paget’s cloning experiment. “To date, this type of abuse has not occurred, but it could if governments fail to take privacy issues seriously.”
The departments of State and Homeland Security say remotely readable ID cards transmit only RFID numbers that correspond to records stored in government databases, which they say are secure. Even if a hacker were to copy an RFID number onto a blank tag and place it into a counterfeit ID, they say, the forger’s face still wouldn’t match the true cardholder’s photo in the database, rendering it useless.
Still, computer experts such as Schneier say government databases can be hacked. Others worry about a day when hackers might deploy readers at “chokepoints,” such as checkout lines, skim RFID numbers from people’s driver’s licenses, then pair those numbers to personal data skimmed from chipped credit cards (though credit cards are harder to skim). They imagine stalkers using skimmed RFID numbers to track their targets’ comings and goings. They fear government agents will compile chip numbers at peace rallies, mosques or gun shows, simply by strolling through a crowd with a reader.
Others worry more about the linking of chips with other identification methods, including biometric technologies, such as facial recognition.
Should biometric technologies be coupled with RFID, “governments will have, for the first time in history, the means to identify, monitor and track citizens anywhere in the world in real time,” says Mark Lerner, spokesman for the Constitutional Alliance, which opposes remotely readable identity and travel documents.
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- I grew up in Chautauqua County, NY. I graduated from Edinboro University of Pennyslvania in 1981 with a BFA in Jewelry and Metalworking. I have been married 31 years. I currently run a small business with my husband. We both enjoy the outdoors and animals a great deal and live on a tiny farm in Western, NY.