[Automatic translation follows] Defend, know, share and support. Created in 2009, the National Agency for Information Systems Security (ANSSI) is the national authority for cybersecurity and cyberdefense attached to the Secretary General of Defense and National Security (SGDSN). Its action to protect the Nation against cyberattacks is reflected in four major missions: 1. Defend - the Nation's critical information systems - victims of large-scale cyberattacks - the Nation by structuring assistance to victims of cyberattacks at the national level 2. Know - the state of the art in technology and information system security and be experts in it - threats …