A Layered Security Approach
Effective physical security uses multiple complementary safeguards rather than relying on a single lock, camera, or guard. Layers may include site design, perimeter controls, lighting, detection, delay measures, access control, response procedures, and recovery planning.
Risk Assessment
Begin by identifying critical people, information, equipment, spaces, and functions. Evaluate credible threats, vulnerabilities, likely consequences, and existing protections. Prioritize improvements based on mission impact and risk rather than applying identical controls everywhere.
Protective Measures
Common measures include controlled entrances, barriers, doors and hardware, intrusion detection, video surveillance, visitor management, secure storage, key and credential controls, emergency communications, and documented response procedures.
Operations and Maintenance
Security equipment must be inspected, tested, maintained, and supported by trained personnel. Access lists, key inventories, visitor procedures, alarm contacts, incident records, and emergency plans should be reviewed on a defined schedule.
Integration with Cybersecurity
Physical and cybersecurity overlap wherever facilities contain servers, network equipment, operational technology, records, credentials, or sensitive work areas. Security planning should coordinate responsibilities across facilities, information technology, human resources, safety, and leadership.