TY JOUR TI Preserving personal digital freedom in the information sphere as a strategy for self-defence against cybercrime KW digital freedom KW cybercrime KW strategies for the self-protection of digital borders KW self-regulation of digital identity JO Vestnik of the St. Petersburg University of the Ministry of Internal Affairs of Russia AU Andreeva, Y.V. AU Nizhelskaya, I.A. PY 2026 IS PB SAINT-PETERSBURG UNIVERSITY OF THE MINISTRY OF INTERNAL AFFAIRS OF THE RUSSIAN FEDERATION