Will linking up computers through phone lines do any damage?

me and my brother link up our computers through the phone line and play starcraft, but then our mom comes and makes us quit. she claims that by linking them up on the phone line it will hurt the computer, is this true in any way?

Will linking up computers through phone lines do any damage?anti virus

It's extremely unlikely. I assume you are talking about dialing from one computer using a modem to another. This is reasonably safe, and is a time tested communication technology. I used a computer with a modem for over ten years with no noticeable ill effect on the computer - heck, most of the world did, before broadband connections became more common.

Will linking up computers through phone lines do any damage?auto protect

No, i doubt it but find another way to do this. Like a router !
People have been hooking computers together through the phone line for many years, both directly and through the phone company. Indeed, a dial-up or DSL connection to your computer amounts to a hookup between your computer and the phone company using the phone line so that your computer can originate calls and talk to other computers, usually the one at your ISP.
yes you will be fine good luck would try going wireless lot easier