Evolving towards the so-called information society raises ever more arduous problems on securing networks and information: systems and computer applications are increasingly complex and interconnected, attacks are more sophisticated and ambitious. Companies and individuals must invest more to protect their equipments and their sensitive information, while protection rules for classified information are hardly compatible with new computer architectures and applications. Endeavours need to be better coordinated at a national and a European level. France suggests an interesting model by transforming the DCSSI, Direction of the National Defence Secretariat, into the National Agency for the Information Systems Security.