Description: The verification of the method of estimating the emergent properties of the functional efficiency of automated banking systems on the basis of a complex quality index is considered. The comprehensive indicator is based on basic security and reliability, takes into account the counteraction to hybrid threats to banking information resources and elements of the infrastructure of automated banking systems. Reference tables are proposed for estimating the complex functional efficiency index. Tables define the ranges for changing the required parameters in conditional scores. This simple method allows obtaining adequate results of the evaluation and combine them with the results of accurate calculations for individual specific parameters. Such an approach allows, without significant economic, computational and human resources, to take into account not only technical but also economic parameters of technical means of information protection. This allows a more accurate assessment of its functional efficiency, taking into account the results of research in scaling automated banking networks. Provides a qualitative approach to the choice of technical means of information protection, the construction of a comprehensive information security system. It allows to take into account the results of analyzes of counteraction to threats to the components of security (information security, cybersecurity, security for information). Provides an assessment of the hybridity and synergy of modern threats, cost minimization and effective control over software tools for a comprehensive information security system. The proposed method for evaluating the functional efficiency of the transfer of banking information uses a complex indicator, which allows obtaining emergent properties. The synthesis of a complex indicator of the effectiveness of investments in the security of banking information resources, the results of assessing the hybridity and synergy of threats and elements of the ABS system, the results of the evaluation of the express method of stability and the effectiveness of the software (hardware and software) implementation of cryptographic algorithms provides a quantitative assessment of the functional efficiency of the transfer of banking information in automated banking systems.
Keywords: banking information resources, automated banking system, method of functional efficiency of data transmission in ABS, hybridization, synergism