This course serves the purpose of introducing people into the field of industrial control systems (ICS) / operational technology (OT) and the cybersecurity considerations unique to securing these environments. ICS/OT make up the critical part of critical infrastructure and deal with all of the networking and computing equipment responsible for making the physical process work in modern day industrial automation environments. These environments range from electric, water, and gas utilities and infrastructure to oil and gas, petrochemical, manufacturing, pharmaceutical, data centers, and even airports. ICS/OT is essentially all the things that exist in IT + unique systems + physics. It's an exciting and rapidly growing field. In the first section of material students will learn key terminology and fundamentals of industrial environments such as PLCs, DCS, SCADA, EWS, and HMIs, key industrial network protocols, and how ICS/OT and the physical process work together. In the second section students will learn the ICS/OT Five Critical Controls and how to apply them to efficiently and effectively enhance the industrial cybersecurity of any modern industrial automation environment. The course is designed as an entry level course suitable for all personnel of any background.