You should keep all your stuff that you want hidden. That way, people won't see you have valuable stuff.
Go on youtube or search internet! It's probably like Club Penguin hacking ask one of them since you just want to get all the rare items!
Well you shouldnt but I know the feeling we have to try and build things back up on our account and change our password if you tell someone on youtube people see and hack in
Its impossible unless the person tells you.
Easy download a hacking systems
Its not nice to hack I suggest you don't do it