Serge Humpich

Serge Humpich is a person who discovered a serious flaw in the Carte Bleue system used in France for credit cards. He tried to contact banks without success for warning them, and so decided to perform a public "show" where he bought subway tickets while using the flaw in the card system. He was convicted in 2000 to a ten months suspended sentence. He was 36 at the time, and lost his job as a result of the case.

Other sites

 * Pele, Laurent "French banking smartcard cracked : the story!", http://www.parodie.com/english/smartcard.htm (a time line of events, with links to many articles)
 * Brontosaurus (2003-09-25), "Serge Humpich", http://www.everything2.com/title/Serge+Humpich (an Everything2 article on Serge Humpich)