I'll quite happily bow to better knowledge if someone can prove there are OS X viruses out in the wild and spreading. From what I've read the only people actively making noise about viruses/malware for OS X are the security software vendors who *suddenly* find a potential vulnerability. Let's face it - they are promoting their own products.QUOTE]
I've reported a couple of incidents to our support contact at Sophos through work. I suspect they're just generic web bugs, not Mac-specific, but it's best to report anything odd it finds.... We've only a few Macs and they're used by people who REALLY should know better, who think they're better, but who've proven they're dafter than some by miraculously finding malware that's flagged while they're using their Macs!
I'm not an expert in AV by any measure, I just manage our infrastructure and I'm just reporting what I've come across.
For reference, the amount of rubbish our Sophos Web Appliance and desktop SAV clients block from our Windows users "just surfing" is ridiculous. Our Board won't allow us to restruct the rights of staff as to what they do, even with overwhelming evidence they struggle to get through a day without spending time surfing instead of working!