Malware experts from antivirus vendor ESET have discovered a new file-encrypting ransomware, dubbed OSX/Filecoder.E, targeting MacOS that is being distributed through bittorrent websites. The bad news for the victims is that they will not be able to recover their files, even if they pay the ransom. This is the second such malware discovered by the security experts after the researchers spotted the Keranger threat in March 2016. The MacOS ransomware is hard to install on the last OS X and MacOS versions because the installer is not signed with a developer certificate issued by Apple.”]
Source: https://securityaffairs.co/wordpress/56575/malware/macos-ransomware.html