So I just spotted a thief inside my walls, which immediately logged off when he saw me, but the problem is that now I can't do anything about him, while he can just log in whenever he wants and rob my place, and log in at his hearthfire. There is no way of knowing if the thief can still log in inside my walls, so my entire claim is unsafe forever, because the thief can wait days or even weeks before logging in and robbing my place.
I think there should be something done to prevent such exploits