That’s pretty brutal. As to the possibility of hacking, I don’t know - but I will say this:
Back in the day when we all used wooden computers and the internet was hooked up with a screaming 5600 or so baud modem to this thing called a “land line,” hacking things was pretty easy. I used to play a game called “Starcraft” which had a cool feature where you could go online a battle it out with people around the world. I remember one time, though, where after about 15 minutes of building up forces, I sent a scout up to sneak a look at the other guy’s progress - and what I found was flat out impossible in the time that had passed - buildings on buildings; large amounts of weaponry that were absolutely physically impossible to have been built within the time frame that had passed. I had heard of some people that had hacked the game, and here it was, right before my own eyes.
So… the point of this story is that back in the stone age, if someone took the time to hack Starcraft just for kicks, no money on the line - is it that far out of the realm of possibility that someone figured out how to hack an online, real money poker game?