ABSTRACT: The advent of real functional quantum computers will cause a privacy problem. Indeed, quantum computers are particularly good at solving algorithms that ensure information privacy, like the RSA algorithm. In this talk, we will see how quantum computers can be used to restore unconditional security and privacy. BIO: Nicolò Leone is a Postdoctoral researcher at the Department of Physics of the University of Trento. He has obtained his PhD in 2022. His research interests are quantum information and integrated photonics.