Critical Infrastructure Security Fundamentals

Modern society relies entirely on the continuous operation of power grids, water systems, transport networks, and communication channels. Protecting these vital systems from sophisticated cyber threats is more critical today than ever before. This course provides a comprehensive introduction to critical infrastructure security, helping you understand how operational technology (OT) differs from traditional IT security. You will learn to identify vulnerabilities, assess risks, and implement robust defense strategies to safeguard essential public and private services. What you'll learn: Understand the core differences between Information Technology (IT) and Operational Technology (OT); Identify common vulnerabilities in Industrial Control Systems (ICS) and SCADA networks; Apply modern zero-trust security principles to critical infrastructure environments; Analyze current threat landscapes and potential cyber-physical attack vectors; Formulate basic risk management and incident response frameworks for vital sectors; Explore security compliance standards and industry-recognized best practices. The course begins with foundational terminology, defining critical sectors and explaining how physical systems connect to digital networks. You will then progress through risk assessment methodologies, network segmentation techniques, and modern defense frameworks designed specifically for industrial environments. This text-only course is designed for aspiring security professionals, IT workers transitioning to industrial security, and beginners with no prior cybersecurity experience. Start reading today to build a strong foundation in protecting the infrastructure that keeps our world running.