Growing in number, more diversified and more precisely targeted, computer attacks have become commonplace and are becoming more and more sophisticated, to the point that they can now be considered as genuine strategic offensives. Advanced Persistent Threats, or APTs, are characteristic of this new generation of threats, methodically combining several intrusion tools and vectors in order to strike slowly, but surely.
In the face of this permanent challenge, cyber-security is no longer seen as a fortress that can just be put in place once and for all in order to protect against threats launched one after the other or indiscriminately by remote hackers. Today, proactiveness and resilience are called for. If a system finds itself unable to anticipate threats, it must be able to confine and neutralize them. The combination of several layers of protection makes it possible to both reduce the risk of flaws and lessen the impact in the event of intrusion.