Physical Security Essentials
William Stallings, Independent consultant
Platt1 distinguishes three elements of information system (IS) security:
• Logical security. Protects computer-based data from software-based and communication-based threats.
• Physical security. Also called infrastructure security. Protects the information systems that house data and the people who use, operate, and maintain the systems. Physical security must also prevent any type of physical access or intrusion that can compromise logical security.
• Premises security. Also known as corporate or facilities security. Protects the people and property within an entire area, facility, or building(s) and is usually required by laws, regulations, and fiduciary obligations. ...
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