TY CONF TI COMPARATIVE ANALYSIS OF DIGITAL FOOTPRINT SOURCES FOR UEBA-CLASS SYSTEMS WITH QUANTITATIVE ASSESSMENT OF INFORMATIVENESS AND COMPUTATIONAL COST KW UEBA KW digital footprint KW insider threats KW behavior analysis KW machine learning KW feature informativeness KW CMU-CERT JO MODELING INFORMATION SYSTEMS AND TECHNOLOGIES – 2026 AU Maltsev, V.V. AU Budovskaya, G.I. PY 2026 PB FSBE Institution of Higher Education Voronezh State University of Forestry and Technologies named after G.F. Morozov