The Mac platform now finds itself in the crosshairs of malware developers along with Windows, but that isn't a reason to switch to Linux.
It has been a rallying cry against Microsoft Windows for years: to avoid malware and security issues, just stop using Windows. The mantra has traditionally been embraced by both Mac and Linux users, but as Mac OS X users deal with the fallout from the Flashback malware attack, some Linux supporters are turning the tired attack even against the Apple OS.