Susukailo, Vitalii, Ivan Opirskyy, Andrian Piskozub, Rostyslav Voloshyn, and Oleg Druziuk. “ANALYSIS OF ATTACKS USED BY CYBER CRIMINALS DURING COVID 19”. Ukrainian Information Security Research Journal 22, no. 4 (March 17, 2021): 220–226. Accessed April 22, 2026. http://jrnl.kai.edu.ua/index.php/ZI/article/view/14943.