Cellphones to keep track of your purchases -- and you

At the moment, the most common form of RFID tagging in this country is what's known as a "passive" emitter. That means the tag has no independent power source and must be activated by an external scanner, usually within a range of up to 25 feet.

Increasingly, passive tags are being replaced with tiny, battery-operated "active" tags that continuously transmit signals as far as 300 feet. Those signals could be picked up by anyone with an RFID scanner.

Numerous companies have filed patent applications in recent years for use of RFID technology to monitor people's activities.

In 2006, for example, IBM received patent approval for a system that could be "used to monitor the movement of the person through the store or other areas."

That "or other areas" is what spooks privacy advocates. At the moment, there are few limits on how this technology can be used.

"The notion that we're building a surveillance society is very real," said Sophia Cope, a staff attorney at the Center for Democracy and Technology, which focuses on civil liberties in the digital age.

Although she acknowledged the myriad benefits of RFID technology, Cope said it was all too easy to imagine cellphone tags being used to monitor people's activities from morning to night.

In a messy divorce case, for instance, records could be subpoenaed from wireless companies that would show not just where and when you made a purchase, but also precisely where you went afterward and how long you stayed there.

Cellphone services already have the ability to pinpoint users on their network. What makes RFID more troublesome is the ease with which the technology can be exploited by others -- that is, companies and government agencies that don't operate wireless networks.

Similarly, tags could be constantly beaming people's name, address and bank account number to anyone capable of picking up the signal, potentially ushering in a new era of identity theft.

"I'd like to say this technology can be controlled," Cope said. "But there's a lot of room for abuse if this isn't implemented correctly."

Desautels at CTIA said the wireless industry is aware of the security concerns surrounding RFID.

"Is there a danger here?" he asked. "No one in the industry has minimized the need to protect consumer information."

It's still early enough in the game for regulators to protect consumers. Some suggestions:

* All RFID-equipped cellphones should have the capability to switch off the technology or at the very least to block the signal. It shouldn't be an all-or-nothing proposition.

* Cellphone makers should be required to produce non-RFID handsets for people with no desire for electronic payments.

* Consumers should be clearly informed about what types of information will be stored on their RFID tags, and should be given the ability to make changes as they see fit.

* Sales of RFID scanners should be limited only to those with a legitimate need to possess the technology.

* Laws should be passed clearly defining the circumstances under which companies and government agencies can track RFID tags and requiring court orders for the technology to be used for surveillance purposes.

There were more than 243 million wireless subscribers nationwide as of June 2007. Considering the stakes, does anyone really think this is a technology that should be left to the honor system?

Consumer Confidential runs Wednesdays and Sundays. Send your tips or feedback to david.lazarus@latimes.com.



Featured Stories

CTnow is using Facebook comments on stories. To comment on ctnow.com articles, sign into Facebook and enter your comment in the field below. Comments will appear in your Facebook News Feed unless you choose otherwise. To report spam or abuse, click the X next to the comment. For guidelines on commenting, click here.

CONSUMER COLUMNISTS

Kevin Hunt - The Electronic Jungle

Kevin Hunt: Technology for the amateur spy - July 21, 2014 - Spy technology has become so widespread and smartphone-ready that sleuthing, like golf, can be played by almost anyone.

Gail MarksJarvis

Money market rules designed to increase awareness - July 30, 2014 - SEC action involving the $2.6 trillion money market industry reminds people that money market funds are a different breed than savings...

David Lazarus

Trying to talk with IRS can be taxing - July 28, 2014 - No one expects the federal government to be a model of efficiency. But with a projected deficit of nearly $600 billion this year, you'd...

Korky Vann

Hot Or Cold, Lobster Rolls Are Worth The Drive - July 13, 2014 - At least once a summer, (more often, if I'm lucky), I have to have a lobster roll — preferably consumed at a picnic table with a...

Advertisement

...