“There have been threads in the past about the U.S. Air Force (and probably IAF) ability to remotely reprogram enemy weapon systems (both air and ground based). Basically inserting new code into the system’s RAM.”
My understanding of the goal of this remote control program — whether this has been attained or not — went far beyond sending counterfeit “spoof” control signals to a weapons system. It actually involved changing the programming inside the system. One of the quotes was something like “We can make their anti-aircraft guns into washing machines”.