People will use this to say windows is better than Mac, or at least not as insecure as people say, but the truth is all operating systems have security holes, and they always will. There are thousands upon thousands of lines of code, plenty of room for many, many hidden bugs. Some are marginally better, or perhaps designed in such a way as to make bugs less devistating, but they all have them.

Another aspect of the whole issue is that since so many more people have windows, attackers look that much harder for holes in windows to exploit. The potention for damage is higher and that is the attackers aim. For this reason these Mac OS things aren't a big deal. Nobody wants to attack Macs.

The nice thing about an OS like Linux (or Unix for that matter) is that it is engeneered in such a way that not every minor hole can be exploited to gain complete access to a machine. In Windows, every user is administrator by default. In linux, even the people who have root access do not login as root unless they need to. It is this culture of security which Windows (and Microsoft for that matter) lack.