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A comprehensive Network Security Risk Model for process control networks.

Matthew H Henry1, Yacov Y Haimes

  • 1Johns Hopkins University Applied Physics Laboratory, Laurel, MD, USA. matthew.henry@jhuapl.edu

Risk Analysis : an Official Publication of the Society for Risk Analysis
|November 13, 2008
PubMed
Summary
This summary is machine-generated.

Cyber attacks on process control networks (PCN) pose significant risks. The Network Security Risk Model (NSRM) evaluates risk management policies to mitigate cyber threats and their consequences.

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Area of Science:

  • Engineering
  • Computer Science
  • Risk Management

Background:

  • Process control networks (PCN) are critical infrastructure vulnerable to cyber attacks.
  • Failures in PCN can lead to catastrophic damage to essential services and commodity flows.
  • Existing risk models lack adequate insight into the efficacy of cyber risk management policies for PCN.

Purpose of the Study:

  • To develop a novel Network Security Risk Model (NSRM) for evaluating risk management policies targeting PCN.
  • To provide a robust framework for assessing the effectiveness of cybersecurity measures in industrial control systems.
  • To address shortcomings in current risk models for PCN cyber attack analysis.

Main Methods:

  • Development of the Network Security Risk Model (NSRM) structure and methodology.
  • Modeling baseline risk associated with cyber attacks on PCN.
  • Assessing the expected risk reduction after implementing candidate risk management policies.
  • Utilizing an illustrative example to demonstrate the NSRM's application.

Main Results:

  • The NSRM provides a means to evaluate the efficacy of candidate risk management policies.
  • The model captures relevant dynamics of cyber attacks on PCN for comprehensive risk analysis.
  • Demonstrated the practical application of the NSRM in an illustrative scenario.
  • Quantified the expected risk reduction from implemented security measures.

Conclusions:

  • The NSRM offers improved insight into the effectiveness of risk management strategies for PCN cybersecurity.
  • The developed methodology enhances the analysis of cyber risks in critical infrastructures.
  • The NSRM serves as a valuable tool for decision-making in industrial cybersecurity.