An advanced persistent threat (APT) is a classy, sustained cyberattack in which an intruder establishes an undetected existence in the network in an effort to steal sensitive details in excess of a prolonged period of time. Intrusion detection methods produce a database of recognized attack techniques to recognize styles and https://www.researchgate.net/publication/365308473_Development_of_Cyber_Attack_Model_for_Private_Network