Layered security provides superior protection for plant control systems

Layered security is a well-documented practice that allows an organization selectively to implement multiple layers of security technology for its plant control systems. The technology is applied according to the plant’s security policy and perceived business risk.Layered security is a practice that involves implementing multiple security technologies in each layer of a computing system to reduce the risk of unauthorized intrusion. Exposure to intrusions increases as plant control systems migrate to open technologies such as Ethernet, Windows, and the internet protocol.Plant operators can apply layered security by adopting a “best practices” model, developing and impleme...

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