Ransomware for Mac is nothing to worry about -- for now

Apple computers haven't been impacted by ransomware, a pervasive and insidious class of malware that encrypts files on a computer in exchange for a ransom.
That's not because Apple's operating system is any more secure than Windows; it's more that malware writers haven't gotten around to writing ransomware for OS X since infecting Windows machines has been so profitable.
However, a Brazilian security researcher, Rafael Salema Marques, decided to show how easy it would be for malware writer