Denial of company: the attacker exhausts the methods necessary to deliver expert services to authentic users. Persona non Grata (PnG) concentrates on the motivations and abilities of human attackers. It characterizes buyers as archetypes that may misuse the technique and forces analysts to watch the method from an unintended-use perspective. https://www.researchgate.net/publication/365308473_Development_of_Cyber_Attack_Model_for_Private_Network