French bank offers Visa cards with dynamic security codes

French bank Societe Generale is to offer retail customers in France the chance to replace their current Visa cards with ones featuring a dynamic security code developed by Oberthur Technologies. The OT Motion Card replaces the three-digit security number on the back of the card with a mini-screen displaying a code refreshed automatically and randomly every hour. The move comes after French bank card association Cartes Bancaires issued certification for OT Motion Code earlier this month.