Saturday, July 31, 2010
Chris Paget talks about long-range RFID tag reading
Xtify faces competition from other location-based ad companies, such as San Francisco, Calif.-based Placecast, which runs geo-targeted ad campaigns, for instance pinging users with text messages when they are near a shop. Xtify says that the very fact that they have a background-running notification system is what differentiates them from the competition. In addition, the service is not reliant on getting a phone’s location from a carrier, nor is it using SMS, which makes the service cost-efficient, Xtify says.
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But the problem, as demonstrated by hacker Chris Paget at the Defcon security conference today, is that they have no security and can be read from a great distance. Paget has already shown he can read a tag from 217 feet.
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