Which sources are recognized as authorized for derivative classification?

• A. Unaudited reports
• B. SCGs and properly marked source documents
• C. Informal communication
• D. Social media posts

Answer: (B)

Authorized sources for derivative classification must adhere to established guidelines and standards to ensure the integrity and security of classified content. The choice that identifies SCGs (Security Classification Guides) and properly marked source documents as recognized sources for derivative classification is correct.

Security Classification Guides provide specific instructions on how information should be classified and are considered reliable references. Properly marked source documents have already undergone the classification process and indicate how the information contained within them should be treated regarding security classification.

In contrast, other options like unaudited reports, informal communication, and social media posts lack the necessary validation and authority required for derivative classification. Unaudited reports may not contain verified information, informal communications often lack formal classification, and social media posts can be unreliable and lack context or proper classification guidelines, making them unsuitable as sources for derivative classification.