Highly doubt he can actually hack. Real hackers don't show it off to everyone for attention as it's highly illegal. If every kid who I've met online (who said that they were a hacker) actually was a hacker, my Xbox Live account would have been hacked a million times by now. Also, did you try to ban his account instead of his IP? If your server is running in online mode, he would have to buy a new account for every one you ban. EDIT by Moderator: merged posts, please use the edit button instead of double posting.