Denial of service: the attacker exhausts the sources desired to supply products and services to genuine people. Persona non Grata (PnG) concentrates on the motivations and capabilities of human attackers. It characterizes users as archetypes that could misuse the procedure and forces analysts to perspective the process from an unintended-use https://www.researchgate.net/publication/365308473_Development_of_Cyber_Attack_Model_for_Private_Network