They are finally prosecuting Roger Duronio, a former network administrator for UBS PaineWebber, who in 2002 allegedly planted a logic bomb throughout their network at causing massive system failures:

… 2,000 of the company’s servers went down, leaving about 17,000 brokers across the country unable to make trades. Nearly 400 branch offices were affected. Files were deleted.

Prosecuters say he did it all because we was shorted about 1/3 of his bonus.

And you thought you were having a bad day.

Nightmare On Wall Street: Prosecution Witness Describes ‘Chaos’ In UBS PaineWebber Attack [Yahoo News/Information Week]

Original DoJ Press Release [DoJ]