University of Texas Professor Todd Humphreys and his team hijacked a 210-foot yacht in the Mediterranean Sea with only a $3,000 GPS spoofer, an antenna and a laptop. The team assembled a device that emits a false GPS signal that can easily be mistaken and accepted by the ship crew as genuine. Once the signal is accepted as legitimate, the engineers gain the authority to steer the vessel at will. The same type of attack could be conducted against planes as well.”]
Source: https://www.bitdefender.com/blog/hotforsecurity/gps-flaw-leads-to-ship-and-plane-hijacks/