Pyramid fraud – this legal term is used in the area of Criminal Law in some jurisdictions, where refers to illegal money-collecting scheme. It consists of promise, made by the cheater towards trustful investors for incredible short-time return of their money and profit. But at the end of the day their invested money is kept by the cheater, and part of it is given to other trustful investors (in a form of benefit) pursuing to collect more from them as well. And so on, and so on until the cheat is discovered.