Wifislax : GNU/Linux Distribution For Performing Quick & Easy Audits of Wireless Networks

ArchStrike : Security Oriented Fuzzer With Powerful Analysis and Features

OpenVAS : Open Vulnerability Assessment and Scanning Operating System

BackBox : Penetration Test and Security Assessment Oriented Ubuntu-Based Linux Distribution Providing Built-in Network and Forensic Tools

Bugtraq BlackWidow : The Most Powerful And Advanced GNU/Linux Penetration Testing Platform - Official Website

NodeZero : Ubuntu Based Linux Distribution For Network Pentesting and Forensics

Kali Linux : Debian Based Linux Distribution Aimed At Advanced Penetration Testing & Security Auditing

KNOPPIX :  Lice Disk Image That Allows You To Copy Files Easily From Hard Drives With Inaccessible Operating Systems

Caine OS : Ubuntu 16.04 Customized For Computer Forensics

Pentoo : GPGPU Cracking Software, With Lots of Tools For Penetration Testing and Security Assessment

NST : Network Security Toolkit - A Network Security Analysis and Monitoring Toolkit Linux Distribution

DeftZ : A Computer Forensics Live CD Linux Distribution Based on Ubuntu