What is Social Engineering？

Social Engineering is to get password, and to cracking. It is also called social hacking and social cracking. It is used these ways. First, they personate system manager, and they pump password. Second, they stand behind a person who operates the machine, and stare the picture and key board when the person inputs password. Third, they steal a paper which is written password.
For example, at present, they steal not only password but also a number of credit cards, and it is used as a method of fraud which family is paid money by personating. In addition, they pump personal identification number of credit cards, and they use burglary cards and forged credit cards, pick up money. This way is, first, they contact using phone. Second, they personate policemen, and they say they want to know your code number for doing confirmation of cards which the captor has.
Crimes like this are increasing every year, and their target is old people. Therefore, we must brace for social engineering, if we experience it, we need to say to the police. Also, above all, we must decrease such as crimes!!