Sec4OT was founded to address a gap that most IT security firms don't understand: the floor is not the office. Production environments run on protocols IT doesn't speak, hardware IT won't patch, and uptime requirements IT doesn't face.
We operate from the Netherlands, work on-site across industrial sectors, and bring OT-native expertise to every engagement — not an IT security methodology adapted for OT as an afterthought.
Sec4OT is deliberately small. When you engage with us, you work directly with Marc — a senior security engineer with a background in both production floor automation and offensive security. No junior consultants, no generic checklists.
Over a decade of hands-on experience spanning industrial automation and OT cybersecurity. Fluent in both Modbus and MITRE ATT&CK for ICS — which means findings are grounded in production reality, not theoretical risk frameworks.
Backgrounds in PLC/SCADA engineering and penetration testing. Regularly engaged for asset discovery, vulnerability assessments, live-hack demonstrations, and OT-SOC design across manufacturing, water, and energy sectors.
Hard-earned convictions about what actually works in industrial environments.
Every Sec4OT engagement is led personally by Marc. Senior expertise from day one — not a project manager handing off to a junior analyst with a checklist.