Two South Florida law firms are the latest to sue fantasy sports companies FanDuel Inc. and DraftKings Inc. on behalf of the websites’ users.

Scandal erupted two weeks ago when it emerged that a DraftKings employee had inadvertently released data on players’ entries in the site’s biggest contest. He quickly went on to win $350,000 in a FanDuel contest, “a situation that is tantamount to insider trading,” according to the lawsuit filed Thursday in Miami federal court.