9. Security countermeasures

• 9.1. Spring Security Overview
• 9.2. Authentication
• 9.3. Authorization
• 9.4. Session Management
• 9.5. CSRF Countermeasures
• 9.6. Coordinating with browser security countermeasure function
• 9.7. XSS Countermeasures
• 9.8. Encryption
• 9.9. OAuth
• 9.10. Implementation Example of Typical Security Requirements