Sophos Home protects every Mac and PC in your home from malware, viruses, ransomware, and inappropriate websites. It uses the same award-winning technology that IT professionals trust to protect their business systems. Best of all, you can manage security settings for the whole family from any browser.
Source: Free Sophos Antivirus and Web Security for Windows and Mac Users | Sophos Home
Disclaimer: Please note this software is for Home Use Only.