What is COMSEC?

• A. The protective measures taken to deny unauthorized persons information from telecommunications
• B. The system of policies, procedures, and requirements established to protect information
• C. A formal program that identifies and protects sensitive but unclassified information that ensures mission success
• D. The protection of physical assets

Answer: (A)

COMSEC is the set of protective measures used to deny unauthorized persons information from telecommunications. It focuses on keeping communications confidential and secure across all channels by using tools like encryption, secure key management, and proper handling of crypto equipment and procedures. This makes it the specific area that guards the security of communications themselves, rather than the broader idea of protecting information in general (which covers policies and procedures), protecting sensitive but unclassified information, or guarding physical assets. In practice, COMSEC ensures that what’s transmitted or stored in communications systems cannot be read or tampered with by outsiders, and that cryptographic material is managed and used correctly.