Im friend of a well known hacker from russian scenario, he said Pokerstars servers are not hard to bring down, "its a 6 out of 10" difficulty in his words
Basically they can attack it anytime they want, he could not prove me that but he said this is for sure the case that hackers asked for some money to reveal the exploit (that first time it happened a month ago) but Pokerstars did not honor the deal (they thought they could handle the exploit themselfs)
No payment they attacked again, as simples as that
(and they will do it on Scoop Main Event day if Pokerstars do not pay them the amount agreed)
The Scheinbergs used to manage this a lot better than Amaya does, they used to pay hackers a lot of money so the exploits found werent used
I think the Scheinbergs did not warn Amaya that when they sold the company