There are a plethora of illegal books, many run by college students, young adults and even teens. How secure are these websites??
What I am really asking is how easy (possible) would it be to hack the site and change a users balance without being detected??
You do3need to gamble on these illegal sites to enable you not fall victim to their scam. Gamble in a reputable casino that you know nothing will deprive you from withdrawal of your funds when you win big, and there will be no excuses.
Those incompetent people operating the illegal site, are up to something, if not why will they operate in an illegal way. It is good that you stay away from them, because they are not doing the right thing, and every other aspect of their site and activities will not be real.