John is the Owner of Black Hills Information Security (BHIS), and has both consulted and taught hundreds of organizations in the areas of security, regulatory compliance, and penetration testing. John is also an instructor and course author of BlackHat's "Active Defense, Offensive Countermeasures, and Hacking Back" and the SANS Institute's "Hacker Tools, Techniques, Exploits and Incident Handling" classes. John is co-author of the" Offensive Countermeasures: The Art of Active Defense" book and is a contributor to the industry shaping Penetration Testing Execution Standard and 20 Critical Controls frameworks. He leads the Hunt Teaming, Command & Control (C2)/Data Exfiltration and Pivot testing development at BHIS. He is a dynamic speaker at conferences worldwide. In his spare time, he co-hosts the Hack Naked TV and Security Weekly podcasts.