Bill Thompson at the BBC took a lot of stick for an article he wrote about Mac users and complacency on security. He's responded to that piece here.

He raises (and indeed raised) a number of good points both in his original article and in the response article linked above. While in some respects he's on the back foot here, I think some of his points are perfectly valid.

The fact that there aren't any viruses, trojan horses or other nasties available for Mac OS X now does not mean that there won't be in the future. One of the nice things about computing is that it is constantly changing, but that applies in equal measures to potential threats as well as potential opportunities.