Free macOS firewall
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A binary authorization and monitoring system for macOS
Easily configure macOS security settings from the terminal.
Anti-forensic macOS tray application designed to safeguard your system by monitoring USB ports.
Firewall and Privatizing Proxy for Trackers, Attackers, Malware, Adware, and Spammers with Anti-Virus On-Demand and On-Access Scanning (PF, squid, privoxy, hphosts, dshield, emergingthreats, hostsfile, PAC file, clamav)