You can not ban social networks
Russian law require to holding the
Personal information of Russian Citizens (residents in Russian Federation): the name, date of birth, I.D. Card number, passport number, characteristics, fingerprints, marital status, family, education, occupation, medical record, medical treatment, genetic information, sexual life, health examination, criminal record, contact information, financial conditions, social activities and other information which may be used to identify a natural person, both directly and indirectly
on the territory of Russian Federation.