SANS Instructors

Xavier Mertens is a freelance security consultant based in Belgium.

One of the Forbes “20 Cyber Policy Experts to Follow On Twitter” and Smart Grid Today’s “Top 50 Smart Grid Pioneers.” Patrick has more than 35 years of information technology (IT), operations technology (OT), audit and security experience. He is a proven executive, entrepreneur, team builder and leader with the perfect blend of refined soft skills and technical depth to span the gap between complex specialized details and delivering real business value.

David has been a network engineer, consultant, security designer and architect, author, and technical instructor since the early 1980s and has specialized in IT security and compliance work in the recent years.

As a SANS Fellow and Principal Consultant at Context Security, Seth’s work bridges traditional operations with next-gen AI security practices. His pioneering threat detection strategies have shaped global blue team standards.

Nick has developed advanced detection frameworks and leading SOC resilience strategies across diverse industries. His leadership at Scarlet Dragonfly and contributions to global security standards have fortified defenses against evolving threats.

Phill started his career at the State Electronic Evidence Branch (SEEB) in Sydney, Australia providing investigative support by examining electronic devices involved in major crime across the state of New South Wales (NSW). He is now a Lead Investigator at CyberCX, working for fellow SANS Instructor Nick Klein.

Don Murdoch, GSE, MSISE, MBA has over 20 years of IT and InfoSec experience across several disciplines. His experience with SANS includes GCIH grader, Advisory Board member, and courseware developer.

Bringing a blended career of experience in security operations and incident response, Michael has worked in large government and military environments as a contractor and built capabilities from the ground up to industry best-standards.

Matt Nappi is the Chief Information Security Officer (CISO) at Stony Brook University, one of only 69 AAU US research universities, and the owner/operator of Long Game Cyber, LLC.

Masafumi Negishi has worked in network building, security audits, and security consulting at foreign-affiliated vendors since 2003.

My-Ngoc Nguyen is the CEO/Principal Consultant for Secured IT Solutions. She brings 25 years of experience in information systems and technology, with over 20 years focused on cyber security for both the government and commercial sectors.

Ryan’s extensive experience, including roles as a cybersecurity engineer for major Department of Defense cloud projects and as a lead auditor, underscores his dedication to enhancing the security posture of critical systems.