Innovative defense strategies for securing SCADA and control systems

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This White Paper takes a look at the fundamental issues with the current practice of securing SCADA and control systems, discusses the concept of security zones of vulnerabilities, and briefly introduces several new and unique cyber defense solutions that can be deployed at each security zone.

By: Jonathan Pollet, PlantData Technologies


OVER THE past few years, most companies with critical infrastructure controlled by SCADA, DCS, and other process control systems have taken the approach to group all of their real-time systems in an environment called the PCN or process control network, and try to keep that environment as separate and isolated as possible from the IT and corporate networks. While this concept is a move in the right direction, treating the PCN environment like a black box and trying to manage one firewall or cyber defense solution at the border with IT is not adequate to protect from changing external and internal threats. The sensitive nature of the PLC and DCS devices controlling the critical infrastructure assets requires a higher level of network segmentation and advanced defense solutions not currently recommended or available through most security firms and IT vendors.

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