I'd bet it'd be pretty difficult to intercept a command to reverse engineer it unless you have a radio in orbit, in the right place at the right time. And I wo

I'd bet it'd be pretty difficult to intercept a command to reverse engineer it unless you have a radio in orbit, in the right place at the right time. And I would be very surprised if commands were not at least signed/verified. That's one function call with a modern crypto library. It might be easier to send slightly plausible noise (right frequency/modulation) to jam it.