Chords is binary file strings extractor, with many formats supported.
Whonix is an Anonymous Operating System.
WiFi-Pumpkin - Framework for Rogue Wi-Fi Access Point Attack
Cuckoo Sandbox is for automated analysis of malware
Advanced Persistent Threat Security
MD5 Checksum Tool
Free Static Code Analysis Tool for PHP Applications
Secure mail + Tor gateway
Mpge
System/security auditing tool for hardening and securing Linux/Unix
A repository of LIVE malwares for malware analysis and security
ant_farm plugin to explore Annotated Binary Files
ant_farm plugin to explore Android Package Files
A powerful data encrypting tool.Encrypt data inside files.
Malware Removal
Python3 GPG aka GnuPG Interface
BHS debian (testing) jessie/sid
Open Source SCADA Security Evaluation Tool
Universal Framework to audit Voip protocols's security
Network security simulator