Bluejacking involves sending unsolicited text messages to other Bluetooth users. Karl Feilder, president and CEO of Red-M Ltd., a vendor of wireless security tools in Bucks, England, described bluejacking as "an annoyance" that can be defeated by turning off the phone function on devices, which needs to be on to allow the exchange of such messages.
Few IT managers are even aware of Bluetooth's widespread use, Feilder said. Worldwide shipments of mobile phones and other devices that use the technology exceeded 1 million units per week last year, according to the Bluetooth SIG. He estimated that as many as 2 billion Bluetooth-equipped devices could be in use by next year.
Many Bluetooth products are short-range devices that can transmit across distances of only about 30 feet. But Jay Chaudhary, chairman of AirDefense in Alpharetta, Ga., said a large number of laptop PCs include longer-range Bluetooth radios that can work at distances of up to 300 feet. That could make them more vulnerable to attacks, he said.
AirDefense's Bluewatch detection tool costs $295 for use on a laptop PC. Red-M also offers a Bluetooth detection system that's based on radio frequency sensors deployed throughout a company's offices, with costs for an installation running between $50,000 and $250,000, according to Feilder.
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