Consumers are hardly ever implicitly reliable. Whenever a user tries to obtain a source, they need to be authenticated and approved, regardless of whether they're previously on the corporation network. Authenticated customers are granted minimum-privilege entry only, and their permissions are revoked when their activity is finished. Gartner's IT https://www.researchgate.net/publication/365308473_Development_of_Cyber_Attack_Model_for_Private_Network