According to wikipedia “On 4 December 2011, an American Lockheed Martin RQ-170 Sentinel unmanned aerial vehicle (UAV) ( or more commonly known as a drone ) was captured by Iranian forces near the city of Kashmar in northeastern Iran”.
The Iranian government announced that the UAV (DRONE)was brought down by its Cyber warfare unit which commandeered the aircraft and safely landed it, after initial reports from Western news sources incorrectly claimed that it had been “shot down”
Iran , China gets US Military Drone Technology
In a recent experiment to test the security of the DRONES, The University of Texas at Austin team successfully nabbed the drone on a dare from the Department of Homeland Security. The team at Texas hijacked the drone mid air and took control over it
The research team repeatedly overtook navigational signals going to the GPS-guided vehicle ( or drone) and they used a technique called “spoofing”, the technique creates false civil GPS signals that trick the vehicle’s GPS receiver into thinking nothing is amiss — even as it steers a new navigational course induced by the hacker.
Since spoofing fools GPS receivers’ on both their location and time, some fear that most GPS-reliant devices, infrastructure and markets are vulnerable to attacks.
According to media reports Iran is building a copy of a US spy drone captured last year and China has shown interest in acquiring this technology