A hacker by the name of "Jason" (thanks games.on.net) was able to briefly gain access to Twitter account for Riot Games' CEO Marc Merill, taking to the account to threaten the release of a finished but not yet released League of Legends card game.

It is unclear whether the threat was actually real or not, Jason claimed that "Riot doesn’t want you to play this game," stating that its a "stand-alone game. I have the server and client source.”

A login screen for the unreleased game was also released, showing the title 'League of Legends: Supremacy', which apparently matches up with a previous domain registration last year by Riot Games. An Imgur gallery was also uploaded with various game icons however has since been pulled from the website.

Merill has since claimed control of his Twitter account, stating that the images were “old screens from one of the many prototypes we’ve experimented with”.