They are called Hyperstealth or Nexter. From Canada to France, they put their technologies at the service of the defense industry. Like a sleight of hand, they can make an object invisible or help a combat apparatus hide. How will they shape the army of the future? Report with our colleagues from France 2.

Shields of invisibility to undetectable combat aircraft, these so-called "stealth" technologies pose great ethical questions. We talk about it with our guest, Franck Decloquement, expert in cyberdefense and professor at IRIS.

Put yourself in the colors of your environment, use water nanoparticles or change your own shape: many of the camouflage technologies are inspired by nature. What are these animals and plants that help scientists and inventors perfect their technologies? Biomimicry course with Guillaume Grallet, from Le Point magazine.

Finally, in our Test24 sequence, fingerprints are screened. They were thought to be more secure than passwords, but they turn out to be just as piratable. The anti-virus editor Kaspersky has devised a ring to replace them. Printed in 3D, it generates a new footprint so that you do not run the risk of stealing your own. Demonstration.

Newsletter Do not miss out on international news

Do not miss out on international news