Ever since I've had my Macbook Pro, and more latterly, my iMac earlier this year, I haven't had an antivirus solution installed. I recently read an article (can't remember where), that basically said that although threats on a Mac platform are significantly less than Windows, they are there, and anyone running a Mac would be foolish not to run an AV solution (in the same way they'd be foolish not to have a backup plan in place).
Since then, I've installed AVG for Mac - a free and not particularly feature rich (to put it mildly) soultion. I ran AVG on my Windows PC for years as my AV solution of choice. I did an initial scan and it found nothing. Nothing found since I installed it either about 2 weeks ago, but I have noticed a reduction in performance, so I'm thinking of ditching it.
I'd be interested to know if any other LIM readers using Mac OS use an antivirus solution, or work on the (perhaps misleading) view, that Macs just don't get viruses or malware?
I have never used virus protection on my iMac or previous Mac mini and a recent scan showed no threats at all. Maybe I am being foolish, but I am one of those who is quite loose when it comes to Macs and safety.