Two major independent testing labs certify Trend Micro's ability to defend your Mac from malware. It comes with numerous bonus features, including new privacy and utility tools.
If malware keeps you from booting Windows or running an antivirus scan, the FixMeStick can save your machine. Keep your antivirus, though, as FixMeStick offers no real-time protection.
NeuShield Data Sentinel doesn't attempt ransomware detection, which can fail. Instead, it offers techniques for recovering from ransomware. It performs well in testing.
Check Point ZoneAlarm Anti-Ransomware remains one of the most effective ransomware-specific security tools we've tested. It detected all our real-world ransomware samples, though its recovery system missed some files.
ZoneAlarm PRO NextGen Antivirus + Firewall scores better in our tests than the free edition, but both editions currently lack the Application Control feature that makes up half the firewall system.