Threat Model for Decentralized Messaging Systems

A model of information security threats for messaging systems with a decentralized nodal structure is presented. Information flows are considered, and a diagram of information states in the process of the interaction of network devices within the framework of a decentralized messaging system is developed. The presented security threats correspond to the classification of the Data Bank of Information Security Threats of the Federal Service for Technical and Export Control, and are also divided into levels of the reference model of open systems’ interaction. For each of the threats listed, the methods of their implementation are considered and the possible source of the threat is described.