h4cker - Omar Santos

H4CKER.org

Cybersecurity, Ethical Hacking, Penetration Testing, Red Teaming, Bug Hunting, Certifications, Exploit Development, Malware Reverse Engineering, Digital Forensics and Incident Response Resources by Omar Santos.

Live Training Free with O'Reilly Subcription

This is a learning path for all the training provided by Omar Santos in O'Reilly and Pearson platforms. Learn more...

The Art of Hacking Video Series

A series of video courses where you will learn the key tenets and the fundamentals of ethical hacking and security penetration testing techniques. Learn more...

WebSploit Labs Learning Environment

Includes several intentionally vulnerable applications running in Docker containers on top of Kali Linux, several additional tools, and over 8,000 cybersecurity resources. WebSploit comes with over 400 distinct exercises!. Learn more...

Industry Certifications

Training resources (books, video courses, and practice tests) for different industry certifications like CCNP and CCIE Security, CyberOps Associate, CyberOps Professional, Certified Ethical Hacker (CEH), Security+, PenTest+, and Offensive Security Certified Professional (OSCP). Learn more...

Other Publications

Other publications that can help you learn different cybersecurity topics, such as how to develop cybersecurity programs and policies, incident response, etc. Learn more...

Red Team Village

Omar is the co-lead of the DEF CON Red Team Village. You can join the Red Team Village Discord Server and learn from thousands of other participants. Learn about future events and access numerous presentations and trainings at the RTV YouTube Channel.

Building Your Cybersecurity Lab

Tips and resources on how to build your own cybersecurity lab and Cyber Range for both offensive and defensive techiques. Building labs in your home, work, or in the cloud. Learn more...

Bug Bounty Tips, Platforms, and Learning

A series of resources about the different types of bug bounty programs, tips on how to get started, and how to continue your learning. Learn more...

Cloud Security

Training and information related to cloud security and cloud security certifications. Learn more...

Digital Forensics and Incident Response

Information for Cybersecurity Analysts working on a security operations center (SOC) and digital forensics professionals. Learn more...

Reconnaissance and Open Source Intelligence (OSINT)

Passive and active reconnaissance (recon) information, tutorials, tools, etc.. Learn more...

Fuzzing

Fuzzing tutorials, fuzzing tools and methodologies. Learn more...

Exploit Development

Exploit development resources, return oriented programming (ROP) and tutorials. Learn more...

DevOps Security (DevSecOps)

DevOps security (DevSecOps) resources, tools, and methodologies. Learn more...

Wireless Hacking

Wireless (WiFi) hacking. Tips on how to build your wireless hacking lab, etc. Learn more...

IoT Hacking and IoT Security

Internet of Things (IoT) hacking and security resources. Learn more...

Web Application Hacking

A series of modern web application hacking and web application security. Learn more...

Reverse Engineering

Reverse engineering tutorials, resources, tools (debuggers, disassemblers, hex editors, dynamic analysis, etc.) Learn more...