There is no magic fairy dust protecting Macs - Dai Zovi, security researcher and co-author of The Mac Hacker's Handbook.
But some of us haven't forgotten the past...
"Spyware cybersigns point to Begg-Smith": http://www.smh.com.au/articles/2006/03/03/1141191842651.html
The SMH article links to stopscum.com which has some interesting information: http://www.stopscum.com/dale-begg-smith-adscpm-a-spyware-low-life-criminal-distributor-wins-an-olympic-gold-medal-for-australia/
Fox Sports notes that “Begg-Smith has made a small fortune from internet advertising, but he rarely talks about his business interests.” – not surprising, really.