Ransomware aimed to shake down Mac users

The bane of "ransomware" used by hackers to hold data hostage was expected to begin striking a small number of Mac computers on Monday. Researchers at US computer security firm Palo Alto Networks said that they alerted Apple over the weekend to the discovery of malicious code they named "KeRanger" crafted to infect Mac computers and deny people access to their own pictures, documents and other digital data until money is paid. "We believe KeRanger is the first fully functional ransomware on the