Instruments and Systems: Monitoring, Control, and Diagnostics Annotation << Back The Investigation of the Operation of SIEM-Systems Using Correlation Rules for Binary Random Sequences I.I. TROICKIY, M.A. BASARAB, E.V. ONUFRIEVA The objective of this research project is to investigate possibilities of using correlators for operation of SIEM (Security information and event management) software systems. SIEM-system is a central link of control of information security and information security operations. This system integrated into an organization’s technology infrastructure, therefore, requires unification of all received information and it’s cross-analysis in single interface. In this study a problem of estimation of a correlation coefficient of two binary sequences (1, –1) under condition, that random values take values with different probability, was solved, using mathematical model, presented in this work. Keywords: SIEM-system, information security, security event correlation, correlation analysis, correlation coefficient. DOI: 10.25791/pribor.6.2021.1270 Pp. 58-62.