If I suspect someone of hacking into my computer [ ] using NetBIOS (as far as I can gather from reading around the web by creating a null user account) how would I confirm this? I mean what files would have been modified by the action of hacking , are there any system logs I could check out? I don't think they did any malicious damage as the computer is still working fine, but what ways would a good hacker try to avoid my seeing their trail, like modifying the system files. If they did cover their tracks well is there any way of seeing this? I'm running WinXP. Also, is there any tracing software I could use to track this type of thing in the future and are there ways around this? Thanks a lot.