It not only provides full system protection "out-of-the-box", but also allows extensive advanced customization. Privatefirewall is comprised of several integrated protection layers including desktop firewall, URL filtering, process monitor, and application/system behavior modeling and anomaly detection. Privatefirewall evaluates WinAPI calls and analyzes a comprehensive list of system variables and security-sensitive registry keys and alerts administrators to attempted malware infection, intrusion, attack, or policy violations. Learn more.