Originally Posted by
aster
IMO you should have anti-virus software installed on your Mac, and to be honest the best piece of software out there (produced by Mac experts, not just some Mac version of a big PC title) is VirusBarrier X6. One of the biggest names in Mac security is behind it.
No, it's unnecessary and waste of resources.
Read here
http://forums.macrumors.com/showpost...48&postcount=4