Abstract: The author considers the approach which helps allocate the possible influences to the information and telecommunication network protocols. The author takes into account the severity of influence and the vulnerability of each information and telecommunication network protocol. The study is based on the data, obtained during experts questioning, which help acquire expert estimates of influences allocation. The procedure is aimed at forecasting the allocation of influences on the information and telecommunication network protocols with account for their role in the information exchange within the information and telecommunication network and the sequence of influence on them. Consequently, it’ll help acquire the initial data to protect the information and telecommunication network and its elements. The basic research method is the hierarchy analysis method. The procedure is based on the definition of the protocol influences danger level for the information and telecommunication network protocols. This definition is based on the physical grounds of certain influences, their peculiarities and mode according to the levels and protocols of the information and telecommunication network. The method can result in the form of protocol influences distribution between the levels and protocols of the information and telecommunication network and the sequence of influence on them.