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166258889 story The world's freight-carrying trucks and ships use GPS-based satellite tracking and navigation systems, reports ZDNet. But "Criminals are turning to cheap GPS jamming devices to ransack the cargo on roads and at sea, a problem that's getting worse...."
Jammers work by overpowering GPS signals by emitting a signal at the same frequency, just a bit more powerful than the original. The typical jammers used for cargo hijackings are able to jam frequencies from up to 5 miles away rendering GPS tracking and security apparatuses, such as those used by trucking syndicates, totally useless. In Mexico, jammers are used in some 85% of cargo truck thefts. Statistics are harder to come by in the United States, but there can be little doubt the devices are prevalent and widely used. Russia is currently availing itself of the technology to jam commercial planes in Ukraine. Commercial drones are also a target to attack. The public was made aware of the issue after 46 drones fell out of the sky during a light show in Hong Kong.
While the problem is getting worse, the article also notes that companies are developing anti-jamming solutions for drone receivers, "providing protection and increasing the resiliency of GPS devices against jamming attacks. "By identifying and preventing instances of jamming, fleet operators are able to prevent cargo theft."
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