Ian Reynolds

Ian has worked across military, defence, manufacturing, utilities, retail, banking and other large-scale enterprise environments. He is also active in operational technology and industrial network security, particularly in the utility sector, where security must be balanced with safety, availability, legacy systems and operational continuity. His client work is international, with a particular focus on organisations operating across Europe and the Middle East.

Ian’s background combines hands-on technical delivery, operational leadership and strategic advisory work. He has worked across frontline analysis, network engineering, infrastructure, escalated incident response, security architecture and security operations management. During more than a decade and a half with CSC, a global IT services provider now part of DXC Technology, Ian held senior roles including Security Architect and Security Operations Manager. This gave him direct experience of designing enterprise security capabilities and running the operational teams that depend on them.

As an instructor, Ian is focused on making security practical. He connects core and advanced security principles to the realities faced by defenders, analysts, engineers, architects and managers working in complex organisations. His teaching draws on real-world experience from enterprise IT, cloud, hybrid environments and industrial networks, helping students understand not just what good security looks like, but how to make it work under pressure.

Ian holds multiple industry-recognised certifications, including GIAC Exploit Researcher and Advanced Penetration Tester, GIAC Certified Enterprise Defender, GIAC Network Forensic Analyst and GIAC Cyber Threat Intelligence. He has also been recognised with the SANS Lethal Forensicator award.

Qualification Summary

• SANS Principal Instructor, SEC401: Security Essentials and SEC501: Advanced Security Essentials
• Principal Consultant and Managing Director, Adaptive Infosec Ltd
• Active security practitioner with over three decades of experience
• Experience across military, defence, manufacturing, utilities, retail and banking
• Active in industrial network security and operational technology, particularly in the utility sector
• International client experience across Europe and the Middle East
• Former Security Architect and Security Operations Manager, CSC
• GIAC certifications: GCIL, GCWN, GSOC, GCDA, GISF, GCLD, GCTA, GBFA, GDAT, GICSP, GXPN, GCED, GCFE, GREM, GCIA, GSEC, GNFA, GPEN, GCFA, GCIH
• CISSP Certified
• SANS Lethal Forensicator award recipient