The existing FAQ content is accurate and well-structured, with no outdated technical information or security misconceptions detected. The content correctly emphasizes protected custom metadata, proper documentation, alignment with Salesforce guidelines, addressing security scans, and leveraging built-in security features. No substantial changes were needed to the answer structure or content. I selected three related security rules: ApexCRUDViolation relates to the FAQ's emphasis on 'access controls' and ensuring proper data access security, which is fundamental when implementing custom metadata security controls. ApexSharingViolations connects to the FAQ's mention of 'permission sets' and overall security measures that need to align with Salesforce standards. ProtectSensitiveData directly relates to the FAQ's core focus on storing 'sensitive information' securely in protected custom metadata and using 'encryption mechanisms' - this rule is specifically about protecting sensitive data, which is the main purpose of the security controls discussed in this FAQ.