At the heart of France's war on cyberattacks

It's a war that's being waged without weapons, tanks or rocket launchers. The battleground is virtual and digital because this war is taking place in cyberspace. Every week, viruses contaminate hundreds of thousands of computers around the world. How is France responding to these kinds of attacks? How can it best protect its citizens? From a cyberdefence university to the biometric systems of tomorrow, we take you inside this virtual battleground.