What are the challenges of cybersecurity?

In an era where the major movements of our society are based on the Internet, and where our professional and personal data are stored on it, the question of cybersecurity is more than ever at the center of our concerns. However, this need for security increases proportionally to the complexity of our computer systems and, consequently, to the difficulty we have in protecting them effectively against the ever increasing number of ingenious attacks. Given the apparent fragility of current means of protection, it is incumbent upon technological innovation players to rethink the notion of cybersecurity. So what changes are coming in this area, and why are they so crucial?