Trust based interdependency weighting for on-line risk monitoring in interdependent critical infrastructures



Critical infrastructure (CI) services are constantly consumed by the society and are expected to be available 24 hours a day. A common definition states that CIs are so vital to our society that a disruption or destruction would have a severe impact on the social well-being and the economy nationally and internationally. CI sectors include, amongst others, the electricity, telecommunication, air traffic and transport sectors. CIs can be mutually dependent on each other and a failure in one CI can cascade to another dependent or interdependent CI to cause service disruptions. Methods to better assess and monitor CIs and their dependencies in order to predict possible risks have to be developed. Information about the current risk in a service provided by a CI can contribute not only to increase CI security, but also to increase the confidence of consumers and CIs that depend on this service. In this paper, a previous work on CI security modelling is extended. A trust based component is added to the security model as a means to improve its accuracy and its resilience to inconsistent information provided by dependent CIs allowing to evaluate the correctness of information received from those dependencies.


Critical Infrastructures; ICT security; Trust and Reputation Management


Critical infrastructures protection

Related Project

FP7 ICT MICIE - Tool for systemic risk analysis and secure mediation of data ex-changed across linked CI information infrastructure


6th International Conference on Risk and Security of Internet and Systems (CRiSIS), 2011, September 2011

Cited by

Year 2017 : 1 citations

 R. C. Cardoso, “Enhancing Trustability in MMOGs Environments”, PhD Thesis, Universidade da Beira Interior, Covilhã-Portugal, January 2017

Year 2016 : 1 citations

 R. C. Cardoso; A. J. P. Gomes; M. M. Freire, "A User Trust System for Online Games – Part I: An Activity Theory Approach for Trust Representation," in IEEE Transactions on Computational Intelligence and AI in Games , vol.PP, no.99, pp.1-1, doi: 10.1109/TCIAIG.2016.2592965

Year 2015 : 1 citations

 C. Alippi, R. Camplani, A. Marullo, M. Roveri, “Algorithms and Tools for Intelligent Monitoring of Critical Infrastructure Systems”, in Intelligent Monitoring, Control, and Security of Critical Infrastructure Systems, E. Kyriakides, M. Polycarpou (Eds.), pp 167-184, Springer Studies in Computational Intelligence 565, 2015 doi: 10.1007/978-3-662-44160-2_6