Up until this point, they have ignored it, but starting about mid-2006, there is now a truly concerted effort to target Mac users. Macking, until now has always been a disjointed effort, with the feeling that such a thin market share was hardly worth the time and effort. I'm not just shooting in the dark here. My area of expertise is data security, and I know that many black hatters are salivating to be the one that brings Apple to it's knees. They may or may not succeed. And before anyone thinks I'm some PC shill, I own and use a MacBook regularly. I also hold several MS certifications and a few other vendor neutral certs. I like the Mac OS, and I do believe that it is inherently more secure than Windows. I also run several distros of Linux. In short, I like computers and believe that all OS's have something to offer depending on the consumer. I also know that any OS is capable of being hacked, and the attitude of "it can't happen to me" is extremely misguided. Apple seems to be fostering this attitude by whistling past the graveyard, and even worse, basically daring anyone to have a go at them. That is what I would call "bad joujou".
That's what I've been saying for a while, but the Mac haters always say no, nobody's interested because of marketshare. BS, there are a lot of hackers out there who do it for glory. OS X will get malware in the wild for it, eventually. It is inevitable.
That's BS. It hasn't been ignored; OS X has been a target for years. And the hackers have been making attempts. There have been substantial cash prizes offered for hackers who succeed in breaking into an OS X Mac. The acclaim and fame that would be given to a hacker from the cracker community for the first successful cracking of OS X's security would be pay enough for some of those who think they are super crackers.
The US Army now runs its website on OS X because of that hardness to hack.