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Operational technology (OT) is the use of hardware and software to monitor and control physical processes, devices, and infrastructure. Operational technology systems are found across a large range of asset-intensive sectors, performing a wide variety of tasks ranging from monitoring critical infrastructure (CI) to controlling robots on a manufacturing floor.  OT is used in a variety of industries including manufacturing, oil and gas, electrical generation and distribution, aviation, maritime, rail, and utilities. 

Operational technology security is defined as, “Practices and technologies used to (a) protect people, assets, and information, (b) monitor and/or control physical devices, processes and events, and (c) initiate state changes to enterprise OT systems.” OT security solutions include a wide range of security technologies from next-generation firewalls (NGFWs) to security information and event management (SIEM) systems to identity access and management, and much more.

Often, IT and OT networks are kept separate, duplicating security efforts and eschewing transparency. Typically, OT networks report to the COO and IT networks report to the CIO, resulting in two network security teams each protecting half of the total network.

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You can read more about OT security here.

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