System for detecting of potentially dangerous communications of network users Alexander Zelensky, Larisa Cherkesova, Elena Revyakina, Nikolay Boldyrikhin, Elena Klimova and Irina Yengibaryan E3S Web Conf., 371 (2023) 01057 Published online: 28 February 2023 DOI: 10.1051/e3sconf/202337101057