In January 2008 Société Générale disclosed ~€4.9bn losses from unauthorized equity-derivatives positions attributed to trader Jérôme Kerviel. French courts convicted him criminally; the Cour de cassation in 2014 confirmed guilt while remanding civil damages for shared-fault assessment. The Banking Commission fined the bank for control deficiencies. The Archive documents bank, court, and regulator doors beside the adherent “bank knew” reading without inventing a U.S. DOJ case or baptizing either lone-rogue purity or ordered-fraud captions.