I had a question about mac security. I have checked my mac for viruses with ClamXav and have not come up with anything. Is ClamXav powerful enough to find viruses? THe main reason why I search for them is so that I do not hurt my friends who use PC's. Also, what about Spyware? Could my mac be infected with spyware? If so, could it be sent to my friends unknowingly like a virus? Is there software I can get to wipe it out? Thanks for any help.