The fairness of fantasy games is in question now after Draft Kings and Fan Duel are facing allegations about possible insider trading.
Millions of people buy fantasy teams on the sites and spend anywhere from 25 cents to thousand of dollars to complete against other people using game stats of real athletes.
But fantasy players sometimes competes against employees of the companies hosting the games, according to the New York Times.
The Times reports that an employee of Draft Kings, Ethan Haskell released data revealing everyones lineups.
Haskell also happened to win $350,000 on Fan Duel, a competing site.
Both Fan Duel and Draft Kings released a joint statement that said the integrity of the game was extremely important to them and they have strong policies in place so employees don't cheat.
One lawyer who specializes in gaming, Stephen Warren Solomon, suspects we will likely see changes in the fantasy industry.
"Most forms of gambling are regulated. Whether Fantasy is gambling or not... that's the hundred billion dollar question right now. If you're playing a game, and you're putting your money in there, you want to have the same fair chance that anyone else has and if there is someone in the company that's paid to gather all the information ....we don't know what he did or didn't do...but we shouldn't be put in those situations," said Solomon.
Employees at both companies are not allowed to play for their own sites. Both companies have temporarily banned their employees from playing for rival companies.