Tricks like pretexting; quid pro quo, tailgating etc. are accomplished in social engineering. Where quid pro quo refers to the old method, in which users are trapped by bogus offers in return they have to provide their personal or bank account information whereas pretexting refers to the theft of the personal and other such sensitive info by impersonating oneself as a legal authority.
- Implement strict measures against unauthorized access either from the user side or even from the employee side.
- Educate your employees as well customers regarding various tricks and techniques of social engineering, and warn them to not providing any kind of personal information to irrelevant entity.