SANS Instructors

Ismael Valenzuela, VP of Threat Research & Intelligence at Arctic Wolf, has fortified global cybersecurity by leading critical threat intelligence initiatives and pioneering defenses against AI-driven threats like deepfakes and ransomware.

NVISO co-founder and SANS Senior Instructor, leading cybersecurity education in advanced adversary tactics. Experienced in offensive security with extensive background in penetration testing and ethical hacking across Europe.

Jeroen is the security architecture team lead and incident manager at NVISO where he specializes in security architecture, cloud security, and continuous security monitoring.

Larry Vandenaweele is a manager at PwC Australia's Cyber and Forensics Practice where he focuses on security architecture design, penetration testing and governance for organizations dealing with control system environments.

Brian Ventura, a Partner at Cyverity, an information security consulting firm specializing in governance, focuses on enterprise information security governance, risk, and compliance.

Simon Vernon is the Head of Research and Development for SANS Institute and a SANS Certified Instructor for SEC488: Cloud Security Essentials.

As a security consultant, Christian conducts penetration testing assessments across vast industries. He exploits vulnerabilities and develops solutions to secure the enterprise networks, applications, mobile devices, and data of his clients.

With FOR577, Taz has authored the first course to systematize threat hunting on Linux systems. His operational leadership—from military intelligence to heading a FTSE100 CSIRT—has fortified global cyber defense capabilities across sectors.

Steven is Chief Security Officer and cofounder of Halborn, a cybersecurity organization specializing in blockchain companies. With over 15 years of experience in cybersecurity, Steven is an industry expert, trainer and technical leader in penetration testing, web application and cloud security, and infrastructure security.

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Tyler Webb contributes specialized expertise in ICS penetration testing methodologies, focusing on practical techniques that protect operational integrity while identifying critical vulnerabilities.

Don C. Weber brings 20+ years of ICS security experience to SANS. As Principal Consultant at Cutaway Security, he specializes in penetration assessment, architecture review, and security assessment across financial, energy, and manufacturing sectors.