Nefarious game makers appear to be leveraging a chat-based Roblox exploit that results in automatic account bans for unsuspecting users.

Games on Roblox have their own currency, skins, weapons, vehicles, accessories, and much more. All these items can be bought in-game as well as through redeem codes.

Knives are a weapon for killers in-game, and there are plenty of them in Roblox Murder Mystery 2. These knives are ranked via a tier list.

Roblox is implementing fixes for a chat moderation exploit that resulted in a wave of automatic bans, but the offenders say there’s more to come.