FAQ-001558 - Public Data API Security / Public Endpoint Security Standards

Rate limiting & throttling: Protect against DoS attacks and ensure fair API usage.

The original answer has several issues that need improvement: 1. **Grammar and clarity**: The fragment 'Can add this' appears to be editing notes that should be removed. The phrase 'To protect against DoS attacks' is incomplete and needs better integration. 2. **Improved flow**: Changed 'To protect against DoS attacks' to 'Protect against DoS attacks and ensure fair API usage' to create a complete, clear statement that better explains the purpose of rate limiting. 3. **Maintained scope**: Preserved the existing content about rate limiting without adding new security requirements, as requested. Regarding the selected security rules: - **ApexInsecureEndpoint**: This rule directly relates to the FAQ's focus on 'security requirements for data exposed via public API endpoints' - it identifies insecure endpoint configurations in Apex REST services. - **ApexCSRF**: Cross-site request forgery protection is a critical security requirement for public API endpoints that the FAQ discusses. - **ApexSOQLInjection**: Public API endpoints often handle user input that could lead to SOQL injection vulnerabilities, making this rule highly relevant to the FAQ's topic. - **ApexCRUDViolation**: Public APIs exposing data must properly enforce CRUD permissions, directly relating to the FAQ's question about 'security requirements for data exposed via public API endpoints'. - **ApexSharingViolations**: Proper sharing rule enforcement is essential for public API endpoints to ensure data security, connecting to the FAQ's focus on data exposure security.