English, Article edition: A general defender-attacker risk model for networks W.I. Al Mannai; T.G. Lewis

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Bookmark: http://trove.nla.gov.au/version/30862
Physical Description
  • article
Language
  • English

Edition details

Title
  • A general defender-attacker risk model for networks
Author
  • W.I. Al Mannai
  • T.G. Lewis
Physical Description
  • article
Notes
  • Purpose – The purpose of this paper is to present a competitive defender-attacker risk model that assumes a dual exponential relationship between defender (Ci) and attacker (Ai) resource allocation: vi(Ai,Ci)=​e-aici-e-aiCi-?iAi. Design/​methodology/​approach – Network risk is defined in terms of degree sequence, g, node/​link damage, d, and probability of failure, v:?R=​?gividi. The paper finds the optimal allocation of resources (Ai, Ci) that minimizes R from the defender's point of view, and maximizes R from the attacker's point of view. Findings – The effectiveness of the optimal min-max strategy is compared with three allocation strategies: random, non-network, and network. It is shown that total network risk is minimized by the non-network strategy, because this strategy considers damage values and ignores network topology in the definition of risk. Originality/​value – The method is illustrated by applying it to critical infrastructure – a hypothetical water-and-power network.
  • Resource allocation, Risk analysis, Risk management
  • RePEc:eme:jrfpps:v:9:y:2008:i:3:p:244-261
Language
  • English
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