Recently, there are articles in which investigate problems associated with the detection of “attacks” on different systems, in particular Dos-attacks, or attacks like “denial of service” in the computer system and the subsequent changes in the input protocol of processing tasks. The problem of dynamic resource allocation between the protection of a system consisting of several modules of the same type, and the creation of new modules is considered. The most important role in the model plays a probability of a “failure” of a working system as a result of alleged “attack”.