Computer Terms: What Is "Social Engineering"?

Social engineering is the crime that people obtain the personal network information such as a password, ID, and e-mail address to enter the network illegally. Social engineering is committed by physical means, not by technical ways.
Peep, eavesdropping, and chatting are one of the main ways to be stolen the individual information. Other way is by scavenging network information from garbage. It would not so difficult to get the information from garbage even if paper was through shredder; therefore, people have to vary care about it when they throw garbage away. In addition to that, some people will try to enter a company to get data by pretending a staff.
Social engineering is done more easily than people think because usually, people do not expect their information is stolen by their dairy lives. Thus, they must care about their personal information.