In this lecture, I will describe how the trend of cyber attacks has changed between the first turning point in 2000 and the second turning point in 2010. At the same time, we will outline the attacks that are expected to increase in the future in terms of the scale of damage, the form of damage, the attack target, and the image of the attacker. In addition, I will explain recent technological trends such as (1) AI and security, (2) IoT security, and (3) security intelligence.