EVALUATING AN ANALYTICAL MODEL OF CYBERATTACK EFFECTS ON AN IIoT SYSTEM WITH EDGE COMPUTING CAPABILITIES

The Industrial Internet of Things (IIoT) is an important component of future industrial systems. Implementing edge computing in the IIoT can significantly reduce decision latency, save bandwidth resources, and protect privacy to some extent. But it is important to realize that edge computing is often resource-constrained, and devices are often spread across vast geographic areas, including intermittent network connectivity. Such conditions increase security vulnerabilities due to increased attack surfaces and physical availability. This paper addresses the problem of securing IIoT systems utilizing the concept of edge computing. An analytical model of attack influences is proposed, including typical scenarios and individual steps of attacks, both physical and software-informational in nature. The presented analytical model is designed to assess and analyze attack impacts on IIoT, implements the concept of boundary calculations, allows to analyze vulnerabilities of IIoT systems more effectively and develop measures to protect them. The model is designed to provide a comprehensive tool for securing critical infrastructures. The model includes typical attack scenarios, detailed attack steps, and impact classification. The developed model can be used for risk analysis, development of protection strategies, and security testing of IIoT systems. The conducted experimental study confirmed the relevance and practical significance of the developed model. The results of the study showed that IIoT-systems using edge computing are subject to a wide range of threats. The most critical are DoS attacks and Data Integrity Attacks. The obtained results emphasize the need to apply comprehensive security measures for IIoT systems with edge computing and confirm the effectiveness of the proposed analytical model.