The significance of cybersecurity
By using real-life examples, such as data leaks and economic losses caused by cybersecurity incidents in enterprises, as well as the network threats faced by critical information infrastructure of the country, it is demonstrated how important cybersecurity is for individuals, enterprises and the nation.
Common cybersecurity models
Introduce the P2DR model (Policy - Protection - Detection - Response, which stands for "policy", "protection", "detection" and "response"). Explain that this model emphasizes that security policies are the core, while protection, detection and response are the three main aspects. Through a continuous cycle, it achieves the dynamic management of network security.