http://machash.com/9to5mac/220237/nasty-mac-malware-bypasses-gatekeeper-undetectable-by-most-antivirus-apps/
Good morning, fellow Apple friends! I feel like I've been the bearer of bad news lately, but this one is important. To be brief, tell your family/friends who own Macs that they need to be careful when opening attachments in their email. Oh, and that they need to get a real antivirus
(I recommend Intego Internet Security X9) because the Mac only has a built-in list called "File Quarantine" that catches known malware.
After reading the article it's clear that Apple lovers are slowly, but surely being targeted. =( Despite this sobering news, if you use security awareness and an antivirus application, you can successfully fend off this kind of malware.
Take care everyone and enjoy your Friday!