Strategic Cybersecurity Leader and Offensive Security Expert with over 21 years of experience across sophisticated offensive operations and web application development. Currently a Managing Principal Consultant at Unit 42, Mark leverages a deep technical foundation to defend global enterprise environments through adversary simulation and covert tactics through the execution of red team, purple team, external network, internal network, mobile and web application engagements.
Prior to Unit 42, Mark served as a Principal Security Consultant at NCC Group, where he led high-stakes red team engagements and mentored emerging consultants. His career includes senior leadership roles at Coalfire and Jacobs, where he conducted critical security assessments for government and public sector clients, audited blue team effectiveness, and architected remediation strategies to harden organizational security postures.
Mark holds a Master of Science in Management Information Systems from Florida State University. He is a highly credentialed professional, maintaining elite industry designations including the OSCE, OSCP, and CISSP. Equipped with a comprehensive understanding of the development and attack lifecycle, he continues to contribute to the field by bridging the gap between complex IT infrastructure and robust digital defense.