An attacker exploits inherent human psychological predispositions to
						influence a targeted individual or group to solicit information or
						manipulate the target into performing an action that serves the attacker's
						interests. Many interpersonal social engineering techniques do not involve
						outright deception, although they can; many are subtle ways of manipulating
						a target to remove barriers, make the target feel comfortable, and produce
						an exchange in which the target is either more likely to share information
						directly, or let key information slip out unintentionally. A skilled
						attacker uses these techniques when appropriate to produce the desired
						outcome. Manipulation techniques vary from the overt, such as pretending to
						be a supervisor to a help desk, to the subtle, such as making the target
						feel comfortable with the attacker's speech and thought patterns.