Why are API endpoints flagged for missing security headers during security review, and do security headers need to be applied to all endpoints including backend APIs?
Answer
We do not fail the application solely due to missing security headers unless there is a demonstrable security impact. However, as a best practice, we recommend that partners implement appropriate security measures. Additionally, security headers establish trust between systems by validating the source and content of the communication.
Why are API endpoints flagged for missing security headers during security review, and do security headers need to be applied to all endpoints including backend APIs?
Recommended Answer Update
We don't fail applications solely due to missing security headers unless there's a demonstrable security impact. However, we recommend that partners implement appropriate security measures as a best practice.
Security headers help establish trust between systems by validating the source and content of communication. While not all endpoints require the same level of protection, consider implementing security headers based on your endpoint's risk profile and the sensitivity of data being transmitted.
Reasoning
The original answer had minor clarity and tone issues that needed addressing. Changed 'We do not fail' to 'We don't fail' for a more conversational tone per the brand guidelines. Simplified 'Additionally, security headers establish trust' to 'Security headers help establish trust' for better flow and readability. Added a final sentence to provide more actionable guidance about when to consider implementing security headers, helping developers make informed decisions about their API endpoints. I selected the ApexInsecureEndpoint rule because this FAQ discusses API endpoints and security considerations. The rule specifically focuses on Apex REST endpoints that may have security vulnerabilities, which directly relates to the FAQ's discussion about API endpoint security and the importance of implementing appropriate security measures including security headers.