Jérôme Kerviel bank a profit of US$2 billion as of 2007. Managers for Société Générale have described some of the means Kerviel employed to avoid the bank's internal controls and escape detection. Its Executive Chairman Daniel Bouton describes the pattern as like "a mutating virus" in which hundreds of thousands of trades were hidden behind offsetting faked hedge trades. Officials say Kerviel was careful to close the trades in just two or three days, just before the trades' timed controls would trigger notice from the bank's internal control system, and Kerviel would then shift those older positions to newly initiated trades. City
Jérôme Kerviel a profit made the hierarchy turn a blind eye. Kerviel published a book in May 2010, "L'engrenage: Mémoires d’un Trader" (The gears: Memoirs of a Trader), in which he alleges that his superiors knew of his trading activities, and that the practice was very common. Jérôme Kerviel grew up in Pont-l'Abbé, Brittany. His mother, Marie-Josée, is a retired hairdresser, and his father, Charles, who died in 2006, was a blacksmith. Kerviel has an older brother, Olivier. Kerviel is married, but he and his wife separated in 2008. He graduated in 2000 from University Lumière Lyon 2 with a Master of