About Us

To be a global leader in securing critical infrastructure through resilient, ethical, and forward-looking cyber security solutions—empowering the energy and nuclear sectors to thrive in an era of digital transformation and evolving threats.

Deliver expert cyber security consulting for operational technology environments across critical infrastructure, with a specialized focus on energy and nuclear systems. Partner with governmental and commercial stakeholders worldwide to address complex security challenges driven by AI, emerging technologies, and geopolitical risk. Through integrated, risk-informed strategies, we help organizations build trust, ensure operational continuity, and safeguard the future of energy.

Critical System Security Consulting (CSSC) is led by Mr. Donald D. Dudenhoeffer, a distinguished expert with nearly four decades of experience at the intersection of security, advanced technologies, and the nuclear sector. Mr. Dudenhoeffer is a recognized international leader in shaping strategic direction and delivering technical solutions that address real-world challenges—enhancing both operational performance and security across the energy landscape.

His career spans a wide spectrum of leadership roles, including serving as the head of the International Atomic Energy Agency’s (IAEA) global cyber security program and advising a newcomer nuclear power program on cyber security program development. His multidisciplinary expertise encompasses nuclear engineering, facility operations, computer technologies, data science, robotics, cybersecurity, nuclear security, and critical infrastructure protection. This unique blend of operational insight and strategic vision positions him—and CSSC—as a trusted partner in securing the future of energy.