Kali Linux is a Debian-derived Linux distribution specifically designed for digital forensics and penetration testing.
A free password safe. Passwords can be stored in highly-encrypted databases, that can be unlocked with one master key or key-disk. For 32- and 64-bit Windows. Links to a port for Linux and MacOS X, and a converter for PalmOS.
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.
The Bro Network Security Monitor
Bro is 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.
Open-source software for sharing information during penetration testing.