Simulating network robustness for critical infrastructure networks

  • Authors:
  • Anthony H. Dekker

  • Affiliations:
  • Canberra ACT

  • Venue:
  • ACSC '05 Proceedings of the Twenty-eighth Australasian conference on Computer Science - Volume 38
  • Year:
  • 2005

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Abstract

We examine the robustness of critical infrastructure networks in the face of terrorist attack, using a simulation experiment that incorporates link capacity, and an extension of data farming which we call network farming. Our results show that symmetrical designed networks generally outperform randomly generated networks, although ring-like structures are very vulnerable. Under targeted attacks, most networks begin to fail when the number of attacks is equal to the node connectivity. Examining the distribution of real-world terrorist attacks, we show that these can be modelled by a Poisson statistical distribution, leading to recommendations for the node connectivity required at different threat levels.