UpGuard!

Lynis is an open source security auditing tool. Primary goal is to help users with auditing and hardening of Unix and Linux based systems. The software is very flexible and runs on almost every Unix based system (including Mac). Even the installation of the software itself is optional!

Open Source Tripwire software is a security and data integrity tool useful for monitoring and alerting on specific file change(s) on a range of systems.

SecPod Saner is a light-weight, easy to use, enterprise-grade security solution for proactively assessing and securing your personal computer. It identifies security loopholes and misconfigurations, and remediates to ensure systems are secure.

NNT Change Tracker Gen7 uses either an agent-based or agentless architecture – the choice is yours. After initial discovery, Gen7 scans your devices and compares them to a standard policy. The policy applied will either be user defined or based on an industry standard such as the Center for Internet Security (CIS). Policies can be automatically assigned based on the device type or priority via a centrally managed console.

Portable Windows security and vulnerability scanner, IT audit and forensic tool.