%0 Conference Article %T DEVELOPMENT OF A SERVICE FOR DETECTING FRAUDULENT AC-TIONS WITH PAYMENT TRANSACTIONS %A Oksyuta, O.V. %A Ivannikov, V.A. %K antifraud, micro service architecture, reactive systems, events, input data analysis %J CHALLENGING ISSUES IN SYSTEMS MODELING AND PROCESSES %D 2025 %P 3 %I FSBE Institution of Higher Education Voronezh State University of Forestry and Technologies named after G.F. Morozov