Apple of course responded promptly as only it could – it subtly removed from its web sites all trace of reference to Macs not getting virus and introduced a Gatekeeper feature that only allows trusted apps to be installed from its App store.
The honest, non-partisan, truth is that Mac OS X is - and iOS will be – as much of a target for virus and malware as Windows – although Android is the undisputed leader by a very long margin.
Google Play, Windows Store, and Apple App Store reflect a sincere desire by all three to eliminate virus and malware from their devices. The rationale is that apps curated, checked, and distributed via a closed ecosystem – walled garden – is the best way to keep users safe. The system fails when users go outside the recognised app store – usually by jail breaking or rooting the device - or when malware is introduced by exploiting vulnerabilities like ‘drive by infection’ from web sites – infected videos and music - or clicking on links in emails.
It is a big, bad, world – much of it orchestrated by organised crime!
AVG has started beta testing of its Anti-Virus for Mac – to test it follow the link and enrol in their beta program. I recommend you try it.
This complements the free AVG Cleaner for Mac that is more a system tool to clean out unwanted or duplicate files and monitors OS X to identify bottlenecks. I tried is on a relatively new Mac and was amazed that there was over 30GB of crud - cache and junk files, install files, log files, file history and more – cluttering the drive. It ran faster after use. The software also has a handy duplicate finder – pictures, music, videos, and documents.