you can be victim of a cracker or some trojans but you can run chkrootkit on a console and find out if any of the few trojans out there are on your computer. So short answer, viruses are always a thing to keep at the front of security but for now not a real problem. If you have a linux mail server serving windows machines as in outlook or outlook express then there are several virus scanners available to catch the nasties before they go to the mail boxes. Short none technical but hopefully some help.
Thanks, Dennis and Paul! Does not a firewall (I am using firestarter) prevent the action of trojans?
Paul
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