Cybersecurity is about protecting computers and networks against theft, damage, or disruption of the services they provide. Our society relies increasingly on computers, networks, smart devices, etc., cybersecurity is raising its importance and is becoming a major challenge. It protects and allows businesses to grow. Very often Cybersecurity becomes important only after “the fact”, as Robbie Sinclair put it, “Security is always excessive until it becomes insufficient”. Common-sense cybersecurity can significantly avoid or reduce the impact of most of cybersecurity incidents.