The increasing calls to regulate the daily fantasy sports (DFS) industry will likely grow even louder after it was suggested that a DraftKings employee had used inside information to win a six-figure prize.

Earlier this week, a thread was started in the RotoGrinders forum in which a DFS player complained that DraftKings’ written content manager Ethan Haskell had publicly posted stats showing DFS player percentage ownership for Week 3 NFL contests that hadn’t yet started. The original poster argued that this was information to which an analyst ought not to have access and wondered how many other DraftKings employees had access to this type of information.

DraftKings’ Ethan responded to the post, taking responsibility for the release of the information, which he said had been an accident and that DraftKings would be “putting checks in place to make sure it doesn’t happen again.” Ethan also stated that he was the only person who had received this data and that company rules prevented him from playing on the DraftKings site.

However, DraftKings doesn’t prevent its employees from playing on rival DFS sites, including FanDuel, where it turns out Ethan placed second out of 230k lineups in that week’s biggest contest, earning a cool $350k in the process. This revelation has prompted many observers to question whether Ethan used his access to the DraftKings data to customize his FanDuel team lineups, which closely mirrored the DraftKings data.