2020 Threat Report: Mac Threats
Three Mac Threats
KeRanger is one of the first ransomware threats to target the Mac OS® and was distributed by threat actors compromising the installer for the Transmission BitTorrent client application. KeRanger was signed with a valid Mac Developer ID in 2016 meaning it could bypass the built-in Mac OS Gatekeeper feature which blocks untrusted applications. Once discovered, the fraudulent signature was revoked.