Cybersecurity is a completely man-made phenomenon that has become the most complex threat to modern societies and disruptor of international relations. It affects basically all aspects of modern life and is coevolving with the progress of technology. Governments and law enforcement have a distinct difficulty to adjust to this new culture that is being developed mostly by hackers. Hackers play a central role in cybersecurity. They are the drivers of change. Cybersecurity is an inherent part of the world of computers, of information and communications technology, and of the life on the Internet. It is not a problem one can solve, ignore, or wish away. It is a problem we will have to live with, and that begins by trying to understand it better.