2. Jerome Kerviel
Jerime Kervie was a French trader from Societe Generale, who was convicted for unauthorized use of computers, forgery and breach of trust, resulting in a loss of $ 7.22 billion. He was found guilty on October 2010 and sentenced to 5 years in prison. Kerviel was also banned from working in finance industry and demanded to pay $6.7 billion, which is likely to be symbolic.