I would believe that they are NOT 100% legitimate. Gambling is just that, you have to be willing to lose to win. I don't believe there is any governing body for on-line gambling. The sites after all are making billions of dollars providing the excitement of winning, they want that one or two BIG winners. They advertise it as the dream, everything is possible. Our government does the same with 649...Imagine the Freedom, AND is that legitimate? It is overseen by the Federal Gov't. If they can have irregularities....you could not believe on-line gambling would not.