Physical security controls can be which of the following?

• A. Natural only
• B. Man-made only
• C. Natural, man-made, or both
• D. Neither

Answer: (C)

Physical security controls encompass barriers and measures that prevent or slow unauthorized access and protect people and assets. These controls can be natural, such as rivers, cliffs, or rugged terrain that make entry difficult; they can be man-made, like fences, gates, locks, surveillance cameras, and staffed guards; or they can combine both elements to create stronger protection. In practice, many facilities use a layered approach that utilizes natural features alongside engineered controls to deter, delay, and detect intruders effectively. That’s why the best answer is that they can be natural, man-made, or both.