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A framework for quantifying cyber security risks

Author

Listed:
  • Wolthuis, Reinder

    (TNO, Postbus 1416, The Netherlands)

  • Phillipson, Frank

    (TNO, Postbus 96800, The Netherlands)

  • Jongsma, Hidde-Jan

    (TNO, Postbus 1416, The Netherlands)

  • Langenkamp, Peter

    (TNO, Postbus 1416, The Netherlands)

Abstract

Recent years have seen an increasing amount of information becoming available which is of benefit to the security risk process. Traditionally, security risk management is an asset-based, qualitative process based on expert opinion and information at hand; periodically a group of experts assesses applicable risks and determines correct risk levels and whether new risks should be added to the list. This paper proposes a threat-based, traceable quantitative risk management approach that uses current information to quantify risks. This leads to a near real-time risk process, where available information is processed, and the risks are automatically updated. The approach was tested in practice at the main banks in the Netherlands.

Suggested Citation

  • Wolthuis, Reinder & Phillipson, Frank & Jongsma, Hidde-Jan & Langenkamp, Peter, 2021. "A framework for quantifying cyber security risks," Cyber Security: A Peer-Reviewed Journal, Henry Stewart Publications, vol. 4(4), pages 302-316, June.
    • Handle: RePEc:aza:csj000:y:2021:v:4:i:4:p:302-316
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    More about this item

    Keywords

    quantified cyber security; Bayesian belief network; real-time monitoring; model based;
    All these keywords.

    JEL classification:

    • M15 - Business Administration and Business Economics; Marketing; Accounting; Personnel Economics - - Business Administration - - - IT Management

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