HID attack payload generator for Arduinos

Six Degrees of Domain Admin

A post-exploitation OS X/Linux agent written in Python 2.7

A collection of code snippets used in blog posts.

Incident Response Methodologies

A curated list of tools for incident response

A collected list of awesome security talks

Next-gen BurpSuite penetration testing tool

Wiki-like CTF write-ups repository, maintained by the community. 2015

Wiki-like CTF write-ups repository, maintained by the community. 2014

CTFs as you need them

A ruby script that scans for vulnerable & exploitable 3rd-party web applications on a network

Metasploit Framework

PowerSploit - A PowerShell Post-Exploitation Framework

PowerShell Module with Security cmdlets for security work