[t]hat part of security concerned with physical measures designed to safeguard personnel; to prevent unauthorized access to equipment, installations, material, and documents; and to safeguard them against espionage, sabotage, damage, and theft. The physical security process includes determining vulnerabilities to known threats, applying appropriate deterrent, control and denial safeguarding techniques and measures, and responding to changing conditions.
Physical security involves the buildings that house computer centers, as well as the remote computer terminals. Within the established security perimeters, access to work areas must be restricted w1th physical barriers, appropriate placement of equipment and supplies, and universal wearing of identification badges. Emergencies must be prepared for, alternative power sources provided in many cases to assure uninterrupted process1ng, and incoming and outgoing materials inspected. Access to loading areas requires special precautions.