Qualys - Qualys helps your business automate the full spectrum of auditing, compliance and protection of your IT systems and web applications.

Little Snitch - Little Snitch is a firewall application that monitors and controls outbound internet traffic.

Nessus - Nessus Professional is a security platform designed for businesses who want to protect the security of themselves, their clients, and their customers.

Gufw - Gufw is an easy, intuitive way to manage your Linux firewall.

BreachLock - BreachLock is a versatile platform that provides scalable and smooth penetration testing services for vulnerabilities.

netfilter - Netfilter software comprises iptables, ipset, conntrack-tools, libnetfilter and more.