Open-source (community edition) software for sharing information during penetration testing.

Kali Linux is a Debian-derived Linux distribution specifically designed for digital forensics and penetration testing.

A free and open source password manager. For Windows, Mac, Linux, and a list of other OS.

Libssh is a free C library implementing the SSH protocol in conjunction with libcrypto from OpenSSL.

A Java based toolkit made up of a protocol analyzer and a port scanner to monitor and troubleshoot security and network problems.

Nmap (Network Mapper) is a security scanner. It is used to discover hosts and services on a computer network.

Tracking software that helps users find, lock and recover their computer, tablet or smartphone when stolen or missing.

An open source, UNIX based network monitoring framework. It can be used for network intrusion detection, collecting network measurements, conducting forensic investigations and traffic baselining.