ZoneAlarm Free Firewall - Personal Firewall software
Little Snitch - Little Snitch is a firewall application that monitors and controls outbound internet traffic.
Comodo Firewall - Comodo Firewall Pro - Secure your system against internal attacks such as Trojan viruses /...
Radio Silence - Radio Silence is a network monitor and firewall for the macOS. The software stops apps from making network connections. The firewall runs in the background and does not require an open window.
LuLu by Objective-See - LuLu is the free open-source macOS firewall that aims to block unauthorized (outgoing) network...
ManageEngine ADAudit - ManageEngine ADAudit is a real-time windows active directory auditing tool.