Fraud refers to the act of defrauding a large amount of public and private property by fabricating facts or concealing the truth for the purpose of illegal possession. Because this kind of behavior does not use violence at all, it is carried out in a calm or even "pleasant" atmosphere, and the victims generally have poor awareness of prevention, so they are more likely to be deceived.
This kind of liar is very cunning. He uses the method of "playing hard to get" to honor the benefits of his promise first and make you feel that what this person is doing is credible. After gaining your trust, he will give you a heavy blow and make you suffer huge losses in absolute trust and unconsciously. This kind of fraud is well planned, difficult to find and harmful.