TY JOUR TI MOBILE FRAUD AS A THREAT TO THE COUNTRY'S ECONOMIC LIFE KW mobile fraud KW telephone KW cellular means KW fraudulent schemes KW self-interest KW victim KW subscriber JO Science & World AU Sokolova, A.N. AU Shumilina, V.E. AU Tupakova, K.D. PY 2022 IS 2022 PB LLC "Perspektiva"