Modeling of Cyber-Physical Intra-Dependencies in Electric Power Grids and Their Effect on Resilience

Kwasinski, Alexis

doi:10.1109/mscpes49613.2020.9133702

Cited by 6 publications

(2 citation statements)

References 17 publications

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“…[102], [103], [104], [105], [106], [107], [108] Segmentation ✓ ✓ [116], [117] Reconfiguration Isolation and Containment ✓ ✓ ✓ ✓ [118], [119], [120], [121], [122], [123] Dynamic Network Composition ✓ ✓ [101], [124], [125], [126], [127] Non-Persistence ✓ ✓ [128], [129] Moving Target Defense (MTD) [138], [139], [140], [141], [142], [143], [144],…”

Section: Risk Management Vs Cyber-resiliencementioning

confidence: 99%

“…Kwasinski in [122] analyzes this problem for power grid and he shows how service buffers, such as energy storage or a data connectivity reestablishment ensured time, help limit the impact of intra-dependencies on resilience. They explain that without service buffers, failures in an infrastructure component may immediately cascade within the system or onto other infrastructures.…”

Section: Isolation and Containmentmentioning

confidence: 99%

See 1 more Smart Citation

Cyber-Resilience Evaluation of Cyber-Physical Systems

Segovia

Rubio‐Hernan

Cavalli

et al. 2020

2020 IEEE 19th International Symposium on Network Computing and Applications (NCA)

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Concerns for the resilience of Cyber-Physical Systems (CPS) in critical infrastructure are growing. CPS integrate sensing, computation, control and networking into physical objects and mission-critical services, connecting traditional infrastructure to internet technologies.While this integration increases service efficiency, it has to face the possibility of new threats posed by the new functionalities. This leads to cyber-threats, such as denial-of-service, modification of data, information leakage, spreading of malware, and many others.Cyber-resilience refers to the ability of a CPS to prepare, absorb, recover, and adapt to the adverse effects associated with cyber-threats, e.g., physical degradation of the CPS performance resulting from a cyber-attack. Cyber-resilience aims at ensuring CPS survival, by keeping the core functionalities of the CPS in case of extreme events. The literature on cyber-resilience is rapidly increasing, leading to a broad variety of research works addressing this new topic. In this article, we create a systematization of knowledge about existing scientific efforts of making CPS cyber-resilient. We systematically survey recent literature addressing cyber-resilience with a focus on techniques that may be used on CPS. We first provide preliminaries and background on CPS and threats, and subsequently survey state-of-the-art approaches that have been proposed by recent research work applicable to CPS. In particular, we aim at differentiating research work from traditional risk management approaches, based on the general acceptance that it is unfeasible to prevent and mitigate all possible risks threatening a CPS. We also discuss questions and research challenges, with a focus on the practical aspects of cyber-resilience, such as the use of metrics and evaluation methods, as well as testing and validation environments.

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Section: Risk Management Vs Cyber-resiliencementioning

confidence: 99%

Section: Isolation and Containmentmentioning

confidence: 99%

Cyber-Resilience Evaluation of Cyber-Physical Systems

Segovia

Rubio‐Hernan

Cavalli

et al. 2020

2020 IEEE 19th International Symposium on Network Computing and Applications (NCA)

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Model-Based Cybersecurity Analysis

Jiang,

Jeusfeld,

Ding

et al. 2023

Bus Inf Syst Eng

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Critical infrastructure (CIs) such as power grids link a plethora of physical components from many different vendors to the software systems that control them. These systems are constantly threatened by sophisticated cyber attacks. The need to improve the cybersecurity of such CIs, through holistic system modeling and vulnerability analysis, cannot be overstated. This is challenging since a CI incorporates complex data from multiple interconnected physical and computation systems. Meanwhile, exploiting vulnerabilities in different information technology (IT) and operational technology (OT) systems leads to various cascading effects due to interconnections between systems. The paper investigates the use of a comprehensive taxonomy to model such interconnections and the implied dependencies within complex CIs, bridging the knowledge gap between IT security and OT security. The complexity of CI dependence analysis is harnessed by partitioning complicated dependencies into cyber and cyber-physical functional dependencies. These defined functional dependencies further support cascade modeling for vulnerability severity assessment and identification of critical components in a complex system. On top of the proposed taxonomy, the paper further suggests power-grid reference models that enhance the reproducibility and applicability of the proposed method. The methodology followed was design science research (DSR) to support the designing and validation of the proposed artifacts. More specifically, the structural, functional adequacy, compatibility, and coverage characteristics of the proposed artifacts are evaluated through a three-fold validation (two case studies and expert interviews). The first study uses two instantiated power-grid models extracted from existing architectures and frameworks like the IEC 62351 series. The second study involves a real-world municipal power grid.

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Resilience Models and Metrics

2023

Resilience Engineering for Power and Communications Systems

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Modeling of Cyber-Physical Intra-Dependencies in Electric Power Grids and Their Effect on Resilience

Cited by 6 publications

References 17 publications

Cyber-Resilience Evaluation of Cyber-Physical Systems

Cyber-Resilience Evaluation of Cyber-Physical Systems

Model-Based Cybersecurity Analysis

Resilience Models and Metrics

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