Today I came across probably one of the coolest demonstrations of remote-control hacking I have ever seen. The technology is called SkyJack and, based on commercial off the shelf products, and some clever coding, you can create a drone to take over other drones.
This is very cool, and very topical with articles written about Amazon delivering products by drone.
I think it is very cool. If you like to "get your geek on", check it out.