Mail with virus?

I always receive an email with virus. A lot of my co-workers receive email and suddenly infecting their computer. The creator of virus has a knowledge to prevent infecting them the virus they made. Just like the maker of anti virus. They know how to prevent virus in infecting. I think some virus are written by some anti virus maker.

they attach it to the mail they'll send.. mostly attached viruses are worms which can easily spread from your system.. for example the I LOVE YOU virus which spread worldwide through mailing service..

hi calixto they send it in an attachement to an email spoofing the address of someone you know or love,so it is not in their computer but only in the attachment.the morale to this is do not open attachments to emails unless you phone the sender and check to see if he or she really sent you an email with attachment. usually a clue is the ending exe, as that is used a lot in virus affected attachments.so be aware of attachments and do not download unless you know that this person really sent you an attachement.