We’ve been saying it for some time: Mac malware is rare compared to the stuff that targets Windows. But Apple computers are far from immune.This year’s SophosLabs malware forecast included Mac malware geared towards harvesting data, providing covert remote access to thieves and holding files for ransom.Other examples of Mac ransomware include OSX/Filecode-K and OSX/Filecode-L.Now comes word of a new piece of Mac ransomware, which SophosLabs has identified as OSX/Ransom-A. Widely reported as an example

Source: More evidence Mac ransomware exists – Naked Security