I crossed the Mac part out because it has begun to be a targeted platform by malware authors. It was also recently compromised at CanSecWest by Charlie Miller, who used an undisclosed Safari exploit (Source: http://www.news.com/8301-13579_3-9905095-37.html).

I’m personally a very happy Mac user, but guess I have to finally give up my peace of mind as far as surfing the internet goes. We’re no longer invincible…

At this point Mac users have to do what Windows users have been doing for a while, namely: run our computers as regular users (authenticate as admin only when necessary), stop installing software from unknown/untrusted vendors (may hurt the software community), patch our machines as soon as the patches come out, and demand that Apple takes a more proactive stance toward security and disclosure. The silver lining here is that since the OS X operating system has good ancestry, we can be reasonably safe in the assumption that Apple won’t fail to secure their operating system is they really try.