TY JOUR TI Russia's Financial Security in the context of Geopolitical instability: legal, economic, and digital challenges KW financial security KW sanctions risks KW digital ruble KW cyberfinancial stability KW legal regulation KW economic sovereignty KW financial literacy KW national payment systems JO JOURNAL OF MONETARY ECONOMICS AND MANAGEMENT AU Magomadova, M.M. AU Alieva, Z.M. AU Kurbanova, U.A. PY 2025 IS 0 PB ITBO University