Case Project 2-2: Social Engineering Psychological Approaches Several basic principles or reasons make psychological social engineering effective. These include authority, intimidation, consensus, scarcity, urgency, familiarity, and trust. Table 2-6 uses these principles in a scenario of an attacker pretending to be the chief executive officer (CEO) calling the organizations help desk to have a password reset. Create two additional scenarios, such as an attacker impersonating a help desk employee who wants access to an employees protected information, and create a dialog example for each of the seven principles.