Critical Infrastructure

Solvability, Operability, and Security for Cyber-Physical Systems: New Computational Methods with Revised Assumptions


This paper discusses the use and integration of disparate but complementary tools for dealing with solvability, operability, and security challenges in Cyber-Physical Systems (CPSs): the Koopman operator for solvability, disjunctive programming for operability, and multi-level optimisation for security. These methods can obviate the need for some of the traditional assumptions used in modelling CPSs. This paper demonstrates the methods’ capabilities and considers ways to advance each method individually. It concludes by discussing how to integrate the different methods and identify useful synergies generated by doing so.

Testing the Fault Tolerance of a Backup Protection System Using SPIN


This article advocates the use of automated model checking to find vulnerabilities in cyber-physical systems. Cyber-physical systems are increasingly prevalent in daily life. Smart grids, in particular, are becoming more interconnected and autonomously run. While there are advantages to the evolving critical infrastructure, new challenges arise in designing fault-toler-ant cyber-physical systems. Tools for automated model checking are a key asset in designing and evaluating cyber-physical systems and their components to maximize robustness and to pinpoint vulnerabilities so that they can be mitigated as early in the design process as possible. As a proof of concept for this model checking concept, this paper tests the fault tolerance of a Wide-Area Backup Protection System (WABPS). Each line in the WABPS incorporates a pair of autonomous agents, hosted on intelligent electronic devices (IEDs), which monitor the status of the line and make decisions regarding the safety of the grid.

Critical Infrastructure: Where Do We Stand Today? A Comprehensive and Comparative Study of the Definitions of a Critical Infrastructure


The concept of ‘critical infrastructure’ has become a key issue as far as the cyber dimension is concerned. All industrialized nation-states that depend on information and communication technologies have defined this concept or established a list of critical sectors to identify their critical infrastructures. Despite the high number of definitions, none of them considers a realistic view of a critical infrastructure as it tends to be reduced to its simple computerized dimension.

On the Importance of Protecting Critical Infrastructure related Engineering Descriptor Information (CIEDI)


The international security situation has lead to increased concern regarding malicious attacks against critical infrastructure (CI). CI encompasses a number of essential services some of which are water, electricity, and gas supply. For all such service-based assets there exists engineering information that includes architectural blueprints, structural composition data, and layout schema of key facilities. Such information exists within electronic systems and on paper as well. This paper argues that CIEDI must be recognized as part of the overall national CI as access to such information may assist attack on the CI itself. This paper proposes a definition of CIEDI and suggest CIEDI be addressed as part of the overall organizational security lifecycle with emphasis on maintaining uniform standards across physical and cyber media.

Cyber Terrorism: An Examination of the Critical Issues


This paper examines the critical issues relevant to Cyber terrorism. A review of the literature indicates that incidences of computer crime and cyber terrorism are increasing. The cyber attacks on the U.S.’s critical infrastructure are no longer random, but rather are coordinated and precise. The types of attacks are discussed and documented instances are examined. Lastly, policy recommendations are discussed that to further assist the U.S. in defending its critical infrastructures and essential operations.

Modelling Critical Infrastructure Systems


This paper examines the basis of what constitutes a system/s and discusses the commonalities in relation to critical infrastructure systems. It focuses on identifying, and discussing system characteristics, complexity, inter-relationships, dynamics and the importance of modelling as applied to critical infrastructure systems. It then considers four differing system-modelling styles with the view to assess and discuss their potential to model critical infrastructure systems, ahead of selecting the most promising and suitable for adoption to critical infrastructure system modelling.

Minimizing Network Risk with Application to Critical Infrastructure Protection


The risk posed by natural disasters and terrorist attacks on critical infrastructure sectors such as the power grid, water supply, and telecommunication systems can be modeled by network risk. However, there is currently no definition of risk for a network. A new definition of network risk is proposed and applied to optimal allocation of a fixed budget such that network risk is minimized for two cost models: Linear and non-linear. It is shown that in both cases, risk minimization is achieved by ranking nodes and links according to their damage value and degree sequence. Furthermore, the critical nodes and links are identified as those with the highest allocation of funds.

Safeguarding Australia from Cyber-terrorism: A Proposed Cyber-terrorism SCADA Risk Framework for Australia


In theory terrorist groups are currently using information and communication technologies (ICTs) to orchestrate their conventional attacks. More recently, terrorists have been developing a new form of capability within the cyber arena to coordinate cyber based attacks. This paper examines a cyber-terrorism SCADA risk framework. The paper proposes a high level managerial framework which is designed to measure and protect SCADA systems from the threat of cyber-terrorism within Australia.  

Cyber Terrorism Awareness within the New Zealand Critical Infrastructure


Dependence on computers has transformed information technology into a potential terrorist target. Prevention of Cyber terrorism should be part of holistic national security policy. This paper analyses the results of a study that indicates New Zealand’s critical infrastructure is not ready for a cyber terrorist attack and gives some recommendations.

Journal of Information Warfare

The definitive publication for the best and latest research and analysis on information warfare, information operations, and cyber crime. Available in traditional hard copy or online.














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The definitive publication for the best and latest research and analysis on information warfare, information operations, and cyber crime. Available in traditional hard copy or online.


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