There seems to be a misconception that these things can be "hacked". These things are literally impossible to hack. First off, these things run on their own private channels, you can't just type in the IP of the robot and away you go, the only possible way to know how to even get the right wavelength, address, channel, ect. is if you were the one actually running the thing, in which case its a hell of a lot easier to simple turn it on its own troops. Second, they're using U.S. government level security, which is almost adaptive in the way it can fend off attackers, but lets say that you are the world greatest hacking master and get through that, then you have to get through the numerous checks and balances that in the case of a successful attack, will either boot the attacker or shut down the robot as a fail safe specifically to prevent this case. Even if all of that goes awry and you do gain control of the drone, then what? You'll need authentication codes and electronic clearance to any damage. My guess is that some of the commands can't even be issued wirelessly, such as a command to turn on friendly fire, you probably won't be able to make it do that unless you're right next to it. After all of that though, you've hacked one. As I said earlier these things all run separately, even if one of these things did turn, boom, its blown up before it can even do damage, and the hacker is back at square one.
