Annotation: This paper discusses the main methods of immunization of modern computer networks. The greatest attention is paid to topologies and types of graph structures under consideration. An assessment and comparison of existing immunization strategies and methods for solving the problems of optimal selection of nodes for immunization in the context of the considered topologies is also carried out. The main advantages, disadvantages and areas of application of the selected topologies and methods for solving immunization problems are highlighted.

Keywords: computer networks, immunization, cyber-physical systems, network security, scale-free networks