METHOD OF AGENT INTERACTION IN A MULTI-AGENT CYBERSECURITY MANAGEMENT SYSTEM OF A TRANSPORT TELECOMMUNICATION NETWORK DURING CYBERATTACK DIAGNOSIS

DOI: 10.31673/2412-4338.2026.019005

Authors

Abstract

The paper addresses the problem of organizing a multi-agent cybersecurity management system for transport telecommunication networks (TTN) under conditions of increasing complexity and stealthiness of cyberattacks. A hierarchical system model is proposed that integrates local and global control loops and is aligned with the structural organization of the TTN. The basic types of agents are defined, including monitoring, threat detection, risk assessment, decision-making, response, and coordination agents, as well as service- and policy-level agents. Their functional roles and information interactions within a unified control cycle are described. A classification of cyberattacks based on diagnostic determinability is proposed. Diagnostically detectable attacks, which cause network parameters to exceed permissible limits and can be identified by basic diagnostic mechanisms, are distinguished from diagnostically undetermined (stealth) attacks that do not violate controlled parameters and therefore require additional intelligent or correlation-based analysis. It is substantiated that TTNs are particularly susceptible to stealth attacks, where contradictory diagnostic information may be generated by self-diagnostic agents, complicating reliable attack identification. To improve diagnostic efficiency, a two-level stealth attack detection system is proposed. The first level implements a fast primary analysis algorithm based on monitoring and threat detection data. If the obtained results are insufficiently reliable, a second level employing enhanced risk assessment and decision-making procedures is activated. Simulation results confirm that diagnostic reliability increases with network scale and decreases acceptably as the number of compromised nodes grows. The diagnostic time increases almost linearly and remains predictable, demonstrating the scalability and practical applicability of the proposed approach.

Keywords: cybersecurity, transport telecommunication network, intelligent agent, multi-agent system, cyberattack diagnosis, stealth attack, hierarchical control model.

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Published

2026-04-01

Issue

No. 1 (2026)

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Articles