OT Security (Operational Technology Security) is the set of practices, technologies, and strategies specifically designed to protect the industrial control systems (ICS), SCADA systems, and other specialized hardware and software that control physical processes and operations.   OT security focuses on ensuring the safety, availability, and reliability of these systems, as disruptions can lead to physical damage, production loss, or even endanger lives.   It differs from IT security by prioritizing operational continuity and safety, and necessitates specialized knowledge of industrial systems and protocols.