The most effective security system integrates a mix of physical, procedural, and electronic security measures to protect assets. This layered approach, often referred to as security in depth, ensures that weaknesses in one area are compensated by strengths in others.

Physical Security:

Barriers, locks, and surveillance systems that prevent unauthorized access.

Procedural Security:

Policies, procedures, and practices, such as access control protocols and visitor management.

Electronic Security:

Technology-driven solutions, such as intrusion detection systems, biometric access controls, and CCTV.

B: Planning and communication are critical but do not constitute comprehensive security.

C: Personnel training and risk management are essential elements but insufficient alone.

D: Hiring practices and awareness training address human factors but lack the technical and procedural dimensions.

Key Components:Why Other Options Are Incorrect:ASIS CPP® References:

Domain 5: Physical SecurityDiscusses the integration of physical, procedural, and electronic measures for comprehensive asset protection.