Sylvestre Denis has been Security Product Manager for Oberthur Card Systems since 2002. Now specializing in Mobile TV, he previously worked on SIM-based WiFi and PKI authentication products. His initial experience in the R&D department was on the world first JavaCard SIM card. Mr Denis graduated in 1995 from the French Institut National des Telecommunications (INT) and also holds a Master in automation - Diplôme d'Etude Approfondie (DEA) - from Paris XII University.