As long as there is no evidence for it, its nothing but a conspiracy theory started on PDF by a irrelevant Old man who has nothing better to do with his life .
No one ever complained or caught anything of that sort in any American made weapon or system , if there were any as i said , EU , S.Korea , Pakistan , Israel & ME, Japan they might have come across it, as for weapons malfunctioning or not doing its job we just saw PAF the so called AF who's F-16 suppose to have these so called KS would have shown a little bit of issue or any past incident would surface by now, Not a single AC or ACM have ever share any concern of that, TBH its nothing but a conspiracy for those who see America is ultimate evil and our natural enemy which it is not , Yes America peruse its interest even if it means hurting Pakistan but who doesn't ?
American Defense Industry worth Billions of dollars and Organizations who buy US weapons are 95% happy and Satisfied including our own Air force . There is no Evidence for you to back your theory , its nothing a BS story .Sorry bro
Again, Hacking a system is different than pre-existing bugs or Software Malfunctions , you are confusing your self with two different things, let me try explain, A radar in a fighter jet is used to track or detect the Targets, locked on them, and fire but there are means that Radar can be jammed, so Jamming is kinda Hacking but doesn't falls under the Malfunction category or Bug, Every Radar is privy to be jammed , not because there is a problem with the Radar, but the other systems specifically designed to jam or hack it . I hope you understood .
PAF never overtly or covertly ever express concern over the so called KS or Bugs in their F-16, in fact they actively trying to get upgrades, and even addition F-16's new and Old . It holds a lot of weight and we should not pretend to be have more knowledgeable than those who has first hand experience on the machine itself .