Counteracting Malicious Insider’s Activity within Funds Transfer Systems

The developed classification characteristics of insiders on the level of access and classification characteristics of their actions allowed to formalize the mathematical apparatus for constructing an insider action model on the basis of the international standard of the IDEF0 functional modeling methodology, to generate input information for the created model, and also to perform the decomposition of the 1st and 2nd levels model. The model is based on the statement that usual insiders work on the same algorithms. The difference arises only due to the specific nature of the enterprise's activities. Based on the above algorithm of actions of insiders, a scheme of actions of insiders at the enterprise was developed.