But retailers have been discovering the ability to monitor RFID at very long distances for years. That's the irony of RFID. How can something with such low read-rates at a distance of two inches—when you absolutely need it to be read—also be readable by a corporate spy across the parking lot? Admit it: Technology (and cats, by the way) not so secretly wants us all to fail.
Among the more fascinating tidbits to come out of the Black Hat/Defcon show in Las Vegas last week was a demonstration that an RFID tag could be read from 217 feet away. The tester used two large antennas and ham radio equipment, reported Dark Reading