No one in their right mind would ask such a question, so I think you have some bad intentions. It seems your real question is whether it's possible to hack these sites and steal money from users. You probably think that no one will complain because they are illegal sites. Well, illegal or not, I think what you want to do is very wrong!!!

No one should risk their money with unverified sportsbooks, smart people stick to verified sites. If someone doesn't know which sites are good, they can get more information on this forum and some other places. I guess the point is, don't risk money before doing some research.