Drug traffickers are using technology to spoof and jam US surveillance drones on the border. The Department of Homeland Security and local law enforcement confirmed that Drug Traffickers are hacking surveillance drones. Small drones are another powerful tool used by the U.S. to monitor its borders, but drug traffickers already adopting countermeasures. The principle behind the GPS spoofing attack is that sending to control system of the drone fake geographic coordinates it is possible to deceive the onboard system hijacking the vehicle in a different place for which it is commanded.”]
Source: http://securityaffairs.co/wordpress/43168/laws-and-regulations/surveillance-drones-hacking.html