"GPS flaw could let terrorists hijack ships, planes"

Technology here might make hijacking ships very easy.  From Fox News:

The world’s GPS system is vulnerable to hackers or terrorists who could use it to hijack ships -- even commercial airliners, according to a frightening new study that exposes a huge potential hole in national security. 

Using a laptop, a small antenna and an electronic GPS “spoofer” built for $3,000, GPS expert Todd Humphreys and his team at the University of Texas took control of the sophisticated navigation system aboard an $80 million, 210-foot super-yacht in the Mediterranean Sea. 

“We injected our spoofing signals into its GPS antennas and we’re basically able to control its navigation system with our spoofing signals,” Humphreys told Fox News. 

By feeding counterfeit radio signals to the yacht, the UT team was able to drive the ship far off course, steer it left and right, potentially take it into treacherous waters, even put it on a collision course with another ship. All the time, the ship’s GPS system reported the vessel was calmly moving in a straight line, along its intended course. No alarms, no indication that anything was amiss. . . .