Which option best describes Physical Security?

Which option best describes Physical Security?

• A. Transmission Security
• B. Emission Security
• C. Top Secret
• D. Physical Security

Answer: (D)

Physical Security focuses on protecting tangible assets and spaces from unauthorized access, damage, or theft. It involves controlling who can enter facilities, safeguarding equipment and documents at rest, and defending against environmental risks. Practical measures include fences, locked doors, access badges, guards, cameras, safes, and secure storage rooms. The other terms refer to different security domains: Transmission Security protects information as it travels between locations; Emission Security (EMSEC) guards against unintentional emanations from equipment that could reveal information; Top Secret is a classification level for information, not a security domain. Since the question is asking for the description of Physical Security, the term that directly conveys protecting physical assets and spaces is the best choice.

Physical Security focuses on protecting tangible assets and spaces from unauthorized access, damage, or theft. It involves controlling who can enter facilities, safeguarding equipment and documents at rest, and defending against environmental risks. Practical measures include fences, locked doors, access badges, guards, cameras, safes, and secure storage rooms. The other terms refer to different security domains: Transmission Security protects information as it travels between locations; Emission Security (EMSEC) guards against unintentional emanations from equipment that could reveal information; Top Secret is a classification level for information, not a security domain. Since the question is asking for the description of Physical Security, the term that directly conveys protecting physical assets and spaces is the best choice.