There's the Ponzi scheme answer, of course.

当然还有庞氏骗局式的答案。

youdao

I introduced them to each newspaper reporter, in order to help them to expose the Ponzi scheme.

我把他们介绍给每家报纸的记者，以帮助他们揭露这个庞氏骗局。

youdao

The more likely route to a prosecution, if there is to be one, is to show that they aided their father in perpetrating the Ponzi scheme.

如果要控告他们的话，比较可能的方案就是证明他们帮助其父实施骗局。

youdao

Now that Madoff has admitted to his crimes, questions have turned to who else might have helped the disgraced financier operate the massive Ponzi scheme.

VOA: standard.2009.03.12

Madoff admitted he had been defrauding thousands of clients since the early 1990s - operating a classic Ponzi scheme - using the money that new customers invested to pay those who wanted to withdraw funds.

VOA: standard.2009.03.12

In some ways the aftermath of the Madoff scam is much like the Ponzi scheme itself.

FORBES: Ponzi Saga Continues With Mark Madoff's Suicide

His sons went to authorities two years ago and said that he had confessed the Ponzi scheme to them.

WSJ: Madoff's Son Is Found Dead in Apparent Suicide

Picard says she established Bank Medici in Austria as a mechanism for shoveling investor money into the Ponzi scheme.

FORBES: Madoff Trustee Sues Austrian Banker for $19.6 Billion, Calls Her Mastermind of Ponzi