Jane, If you leave your computer on all the time and connected to the internet thru a phone line, than a friend can check your computer address while at your home. They can then connect to your computer from a remote site. This happened to my neighbor just after I sold him a used Mac. He blamed it on the Mac instead of his so-called friend who screwed his system up. I had to fix it twice before he finally stopped his friend from using Mac. Gil _______________________________________ On Dec 7, 2005, at 18:10, Jane Sprando wrote: How can you tell if your computer has been invaded or hacked into? Jane -------------- next part -------------- An HTML attachment was scrubbed... URL: http://listserver.themacintoshguy.com/pipermail/homemac/attachments/20051211/93ea73f5/attachment.html