TY JOUR TI Violation of privacy when using Big Data technologies KW digital technologies KW information KW personal information KW personal information KW Big Data KW user agreement anonymity KW operator KW depersonalization KW geometrician JO Legal Science and Practice: Journal of Nizhny Novgorod Academy of the Ministry of Internal Affairs of Russia AU Pinkevich, T.V. AU Nesterenko, A.V. PY 2019 IS 2019 PB Nizhny Novgorod Academy of the Ministry of the Interior of Russia