I made our little Minecraft server a whitelisted one this morning after I read about this hacking on another server. 3 guys were able to login and change all the signs in the world.

That unfortunately is a bug of vulnerability in Minecraft but if they can’t get in they can’t do it. I’ve added everyone who has been on before (or who I know is interested), so if you want to join us, get in touch with your Minecraft username.