Source code for Hacker101.com - a free online web and mobile security class.

The OWASP Cheat Sheet Series was created to provide a concise collection of high value information on specific application security topics.

A list of useful payloads and bypass for Web Application Security and Pentest/CTF

Checklist of the most important security countermeasures when designing, testing, and releasing your API

Security Guide for Developers

A collection of inspiring lists, manuals, cheatsheets, blogs, hacks, one-liners, cli/web tools and more.

A collection of various awesome lists for hackers, pentesters and security researchers