It was recently discovered by Fortinet a new ransomware specifically targeting the Mac OS platform. Even if it is far inferior from most current ransomware targeting Windows, it doesn’t fail to encrypt victim’s files or prevent access to important files, thereby causing real damage. The MacRansom is built directly by request when accessing the MacRansom Portal, which can only be accessed when using the TOR network.
Many Mac OS users might assume that their computer is exempt from things like ransomware attacks and think that their system is somehow essentially “secure.” It is true that it’s less likely for a Mac OS user to be attacked or infected by malware than a Windows user, but this has nothing to do with the level of vulnerability in the operating system. It is largely caused by the fact that over 90% of personal computers run on Microsoft Windows and only around 6% on Apple Mac OS.
More information can be found on Fortinet’s blog post that will provide screenshots along with documentation of the malware.