http://lowendmac.com/musings/05/0322.htmlThe problem isn't that crackers can't hit the broad side of the Macintosh bar - it's that the barn is made of stone. To use another analogy, it's like a cop wearing body armor. Or maybe it's more like shooting someone with any type of gun while they're safely enclosed in a military tank and you're on the outside.
Nobody is claiming that OS X is invulnerable, only that nobody has found a way in and exploited it. Not yet. If OS X has an Achilles' heel, I think malware authors are clever enough to identify it and take advantage of it.
Just imagine the fame of being the first to crack OS X! If anything, breaking into OS X has to be the golden chalice of cracking.
The simple fact that nobody has yet compromised OS X means that it's pretty secure. Sure, there will be more efforts made to hack in, but until once succeeds, we don't need Symantec and Trend Micro spreading fear, uncertainty, and doubt so Mac users will invest in antivirus software that has nothing to do.
The ravings of Symantec are nothing more than self-serving propaganda aimed at spreading fear, uncertainty, and doubt to create a market for a product that no Mac user needs at present.