Lol. The thing is, he and his friends griefed this one server and he was banned. He now is trying to figure out my new password.
Then make a password he could never figure out. It could be super complex or super simple. Just don't use something he would think of.
Honestly, if you can't stop him, the automated plugins set up will keep you from gaming in the future. There's no real telling if its you or your brother really doing it for sure. Playing the devil's advocate, you post this post, then grief, then blame the brother. Not saying it's you, but form an internet perspective there have been much more crazy stuff that has happened and the plugin is not bias to your situation.
I would just make sure he can't be you ever. I would come up with super complex passwords and NEVER SHARE THEM WITH ANYONE. That way you are cleared.
Don't use that one, he might see it on the forums. But you know what I mean. Unless he's some kind of hacker with a serious brute force cracker, then he will be out of luck. Make sure you keep the box that says "log me in automatically" is always unchecked.
Also wear a tin foil hat in case he suddenly develops the ability to read minds. You can never be too sure. I keep mine with me at all times.
That's all the advice I can offer for now. I hope it works out well for you.
Jeremiah 20:9-But if I say, "I will not mention him or speak any more in his name," his word is in my heart like a fire, a fire shut up in my bones. I am weary of holding it in; indeed, I cannot.