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

Trading is a highly sought-after feature in Roblox titles like SpongeBob Tower Defense as it helps you avoid the traditional grind and unlock new content by simply exchanging it with others.

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.