Well at least PokerStars have great security, as we can see from this case, where they instantly restricted your account, when it appeared like, you were letting someone else play from it in the middle of a tournament. By contrast GG Poker recently had a big cheating scandal, where someone hacked into the system and were able to see their equity in the hand, even when they were not all-in. One player was banned and some confiscated money distributed, but there might have been more cases, that they never admitted to.
There is also a site like WPT Global, which apparently does not even catch onto it, when someone living in India or Cambodia use a VPN to pretend to be in Andorra while playing, and likely created multible accounts as well. And there were bot rings operating there, which it took them almost a year to do something about. So I am pretty happy to play on a site, where security actually do, what security is supposed to do. But of course it sucks, when you are the one coming under investigation, because you inadvertently logged on via a VPN in the middle of a tournament.
Well thats at least something, and nobody know, how he would have done, if he had still been sitting in. Being the chip leader with 14 left does not mean, we are going to win the tournament. Its also possible, he would have run KK into AA, lost most of his chips and then lost the rest in another hand sending him out of the tournament without even cashing. So as I said already, he should not expect or even discuss compensation. If they give him something, thats an act of courtesy, because they think, he is a good costumer and want to keep him happy.
