My brother knows little about computers, but he has a friend who works for a computer company. This friend can find out anything my brother has done on his computer from his comptuer, even if he has cleaned out his cache, cookies and trashcan. My brother has a software firewall up. This friend help set up his comptuer a long time ago, and I was curious as to know if its possible he loaded some type of spy software on his computer. My brothers friend said all he needed was someones email address and he could get into there computer and find out anything. Is that possible? He also gets into the company that holds my brothers pager, and finds out who paged my brother when, and this is information that even his large paging company wont give him, and says that nobody can get that informaion because of there vast coporate firwalls. Anyway its driving my brother nuts, because this guy knows every thing he does. Is there a way to stop it, and is there away to completely erase your internet activitie so that no one can hack into your computer and find it?