Timothy McKenzie
Assistant Professor
Owner at 3L337 Consulting, LLC
Specialities
Offensive Operations, Cloud Security
Connect with Timothy

About Timothy
Timothy McKenzie is a SANS Principal Instructor, founder and principal consultant of 3L337 Consulting, and a co-author of SEC542: Web Application Penetration Testing and Ethical Hacking. He also teaches SEC588: Cloud Penetration Testing. With more than 30 years of experience spanning enterprise infrastructure, information security, penetration testing, and Red Team operations, Timothy brings a practitioner's perspective to every course. His teaching reflects the realities of offensive security consulting, where web applications, cloud environments, and enterprise networks must be assessed methodically, findings must withstand scrutiny, and recommendations must translate into meaningful security improvements.
Press & Media
Recognitions
- 3L337 Consulting / Technical Research Blog / Ongoing Publishes practitioner-focused research covering GraphQL security, web application testing, cloud security, AI-assisted penetration testing, and offensive security techniques.
- GitHub / Open-Source Projects / Ongoing Maintains community projects including autocrack, Tools-n-Stuff, and offensive security utilities supporting penetration testing workflows.
