Can you give someone a computer virus if your computer has one already?

[Christine]

In other words if ur computer has a virus can it harm other computers w/out you knowing it? Like spreading the virus w/other computers like friends fam or whoever you chat w/send email, share stuff ppl on ur facebook account ect...???

[Ruben Zaragoza]

Some viruses can spread through email.

[Shaun Mcnickle]

yes, but if they have good virus software they'll be fine. it is common on FB to get a virus that sends a link to all your friends that links them to the same virus and so on

[Emotion Hd]

these are two question, aren't it ?

of course you can have more than 1 virus on your pc
and yes you can share youur viruses via usb sticks, etc.
but via fb is nearly unpossible (except for downloads and such things)

greetz, toucher

[Dunbar Pappy ÏŸÏŸ]

From Norton Safe Web; http://safeweb.norton.comsafety
Worms
A worm is another type of malicious code, or malware, that focuses primarily on spreading to other vulnerable computer systems. It typically spreads by sending out copies of itself to other computers, either via email, instant messages, or some other service. See the Malware Topic Center for more detailed information.