Operational Technology Security

Operational Technology Security: Protects industrial control, production, and process control systems. The focus is on industrial and cyber-physical environments where availability and human safety are particularly critical. Changes, segmentation, and response measures must be aligned with operational and security requirementsSecurity RequirementA mandatory condition that a system, process, or control must satisfy for security purposes..

Protection covers operational technologyOperational TechnologyHardware and software used to monitor or control physical equipment, machinery, and industrial processes. such as PLCs, control and safety systems, sensors, and actuators.

How it works and where it fits

Operational Technology Security denotes a technical component or operating environment with its own trust boundaries, identities, interfaces, and dependencies. Security is determined not only by the product, but by architecture, configuration, and the way data and privileges cross component boundaries. Management planes and production processing should be considered separately.

Practical security relevance

Secure operation depends on complete inventory, hardened baselines, least privilege, patchability, and centralized telemetry. Changes should be reproducible and reviewable. Exposed interfaces, default access, secrets, and supply-chain dependencies need particular attention; isolation, backup, and recovery must also be exercised in realistic conditions.

Related concepts

• Operational TechnologyOperational TechnologyHardware and software used to monitor or control physical equipment, machinery, and industrial processes.: Hardware and software used to monitor or control physical equipment, machinery, and industrial processes.
• Unidirectional GatewayUnidirectional GatewaySecurity component that technically permits data traffic in only one direction.: Security component that technically permits data traffic in only one direction.
• Network SegmentationNetwork SegmentationSeparates network segments to control access and limit lateral movement.: Separates network segments to control access and limit lateral movement.
• Operational ResilienceOperational ResilienceAbility to maintain critical services or rapidly restore them following disruptions.: Ability to maintain critical services or rapidly restore them following disruptions.