TY JOUR TI Digital intermediaries and legal regulation: challenges and prospects KW digital intermediaries KW legal regulation KW private law KW service providers KW algorithmic management KW digital economy JO BULLETIN OF ECONOMIC SECURITY AU Filippova, A.I. AU Gerasimova, V.S. PY 2026 IS 0 PB Moscow University of the Ministry of Internal Affairs of Russia named after V.Ya. Kikot