OT Security All-in-One, Volume 1: Foundations of OT, ICS, and SCADA Security: Operational Technology, PLCs, HMIs, RTUs, DCS, Historians, Safety Systems, Industrial Protocols, the Purdue Model

Cybersecurity is no longer only about stolen data. In industrial environments, a cyber incident can stop production, blind a control room, interrupt water treatment, disrupt energy delivery, or compromise safety systems.When a cyber attack stops a pipeline or takes a water utility offline, the failure is never confined to a screen. Volume 1 of the OT Security All-in-One series builds the complete mental model every practitioner, architect, auditor, and board member needs: what OT actually is, how ICS and SCADA really work, the Purdue model level by level, PLCs, RTUs, HMIs, historians, safety instrumented systems, and industrial protocols from Modbus to OPC UA - and why securing them is nothing like securing IT.Every chapter follows the same disciplined rhythm: clear objectives, a control-room scenario under pressure, a plain-English build-up, an engineer-grade deep dive, a verified real-world incident, common failure patterns, a controls-and-evidence table, a board-level translation, a practitioner checklist, and review questions whose answers teach. Includes field templates, references, and a full index.30 chapters. One doctrine: Protect the plant. Prove the control. Survive the outage.