There is so much misinformation in your reply, I’m not even sure where to start.
The vast majority of malware that I’ve seen on people’s PCs comes from them downloading some crap and installing it, blindly clicking past the security prompts. Usually this is some software product that has some crap like Ask.com toolbar or equivalent embedded in the installation. I don’t care what platform you’re on, if you do that, you’re going to get malware. The difference is, on the Mac, the quantity of apps that do that is just way less. The App stores (on both platforms), I think are eventually going to kill off that attack vector. There just won’t be another way to install apps.
We’re on a thread discussing a critical vulnerability (root level access) in OS-X, that’s been there since 2011, and you’re sitting there claiming that Macs are completely secure. You’re not doing less-informed users a real disservice with that kind of outright lie.
The comment about Apple products losing the hacking contests because people wanted to win a Mac is, by far, one of the most laughable claims I’ve ever seen on the Internet.
But I will concede one point, and one that you don’t directly make, but that you allude to in your reply. And that is, the biggest security vulnerability these days is not the OS platform, but rather the browser add-in products, most especially Flash and Adobe acrobat. It’s so bad, that the hacking contests like Pwn2Own have broken those exploits out as a separate category. And btw, those products are cross-platform.
You might want to look up some of the interviews done with these hackers... interestingly enough, year after year of "hack it/win it" contests - the reason repeated - they wanted the Mac... it is a FACT.