There was given review of empirical and theoretical research results of complex networks. There are the main characteristics by which we study the topology and evolution of networks in time, which are the result of human activity. Focus on the dynamic properties of the Internet and on analysis of behaviour in time of its basic characteristics. There was investigated the topology of local computer network BW-Star & Fox Net in Chernivtsy.
For the successful use of modern information technologies, it is necessary to effectively manage not only the network, but also information systems security (ISS), the information system on the level of the system must operate autonomously implementing the management structure of information security events, planning the composition of modular ISS and audit.