Principles of Operational Technology Cyber Security (Quick Reference Guide)

Critical infrastructure organisations provide vital services, including supplying clean water, energy, and transportation, to the public. These organisations rely on operational technology (OT) to control and manage the physical equipment and processes that provide these critical services. As such, the continuity of vital services relies on critical infrastructure organisations ensuring the cyber security and safety of their OT.

Due to the extensive integration of OT in the technical environments of critical infrastructure organisations, and the complex structure of these environments, it can be difficult to identify how business decisions may affect the cyber security of OT, including the specific risks attributed to a decision. Decisions may include introducing new systems, processes, or services to the environment; choosing vendors or products to support the technical environment; and developing business continuity and security-related plans and playbooks. This document is designed to assist organisations make decisions for designing, implementing, and managing OT environments to ensure they are both safe and secure, as well as enable business continuity for critical services.

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