It held mail and statements, used personal contact information, helped with checks and wires that were hard to trace, and used other banks to help hide funds for U.S. clients.

FORBES: Swiss Bank's Tax Evasion Sentence Is Really Death

Fastow alleged that the questionable financial instruments he'd helped create, such as LJMs and the carnivorously-monikered Raptors, were pumped up at Skilling's behest to help hide ballooning Enron debt from investors and Wall Street analysts.

FORBES: Whistleblower Watkins Vindicated By Enron Guilty Verdicts

Mr. Birkenfeld, who was a private banker at UBS, was convicted of conspiring to help a billionaire hide money in UBS accounts.

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