InfraShield is proud to announce that Jeffrey (Jeff) Knight is rejoining the company as Director of Global Critical Infrastructure Services. Jeff brings more than 35 years of experience in nuclear engineering and cybersecurity across the Department of Defense (DoD), SWIFT, the NRC, and the Department of Energy (DOE) National Laboratory complex.
Summary
InfraShield is proud to announce the addition of two distinguished leaders to its executive team—Mario Fernandez as Director of Nuclear Security and Compliance and Jeffrey “Jeff” Knight as Director of Global Critical Infrastructure Services. Jeff, a Navy veteran and nuclear cybersecurity specialist, returns to InfraShield with over 35 years of experience spanning the Department of Defense, SWIFT, and Idaho National Laboratory, where he advanced industrial control system (ICS) security for nuclear and energy programs. His appointment reinforces InfraShield’s commitment to bridging the gap between policy and operational resilience as it strengthens its mission to protect the world’s most critical infrastructure from evolving cyber-physical threats.
Jeff began his career as a Navy Reactor Operator and later worked as a real-time UNIX programmer on Navy sonar systems at IBM Federal Systems. He went on to manage cyber-physical security for SWIFT, where he led the development of data centers, managed armed guard operations, directed a cyber forensics team, and helped design defensive architectures for financial systems.
At the NRC, Jeff served as a cybersecurity SME, providing training and support to licensees and participating in cyber inspections across Milestones 1–7. Most recently, he spent eight years at the Idaho National Laboratory (INL), deepening his expertise in industrial control systems (ICS) cybersecurity. There, he supported U.S. and international nuclear cybersecurity initiatives through the DOE, National Nuclear Security Administration (NNSA), and IAEA. He also collaborated with emerging small modular reactor (SMR) developers on the design of resilient instrumentation and control (I&C) cybersecurity architectures.
Jeff holds a Bachelor of Science in Computer Science from George Mason University and a Master of Science in Computer Science from James Madison University. He also maintains numerous professional cybersecurity certifications, including multiple SANS credentials and the CISSP.
Jeff looks forward to continuing his collaboration with the InfraShield team and supporting both domestic and international nuclear power initiatives—including SMRs—as the United States works to expand its grid capacity over the next five years. Furthermore, Jeff joins other InfraShield former NRC personnel such as Mario Fernandez and Mark Rorabaugh.
About InfraShield
InfraShield is a U.S.-based cyber-physical security company specializing in the protection of critical infrastructure systems across operational technology (OT) and information technology (IT) environments.
We design and implement tailored solutions, technologies, and strategies to defend high-value assets in sectors such as nuclear power, energy, transportation, mining and metals, water, and government against evolving cyber threats.
Founded by former NRC regulators, industry practitioners, and subject matter experts, InfraShield bridges the gap between policy and operational resilience. Our approach integrates compliance, defense-in-depth engineering, and incident response to safeguard mission-critical operations against nation-state actors, ransomware groups, and supply-chain threats.
From nuclear facilities to smart grid infrastructure, InfraShield delivers mission-ready protection—where failure is not an option.
