1, Network Danger and Prevention: How to identify network dangerous behaviors such as phishing, malware and online fraud, and how to take corresponding preventive measures.

2. Password security: how to set and manage secure passwords and how to avoid password leakage and cracking.

3. Network privacy protection: how to protect personal privacy and how to prevent personal information from being leaked and abused.

4. Network attack and defense: how to identify and prevent network attacks and how to protect your own network security.

5. Network civilization: how to abide by network morality and how to maintain network order and civilization.