Definition of Physical Security
Protecting valuable tangible assets from harm, or using
physical methods to protect intangible assets. Tangible assets can include, for example, people, equipment, buildings, cargo, money, weapons, museum artifacts, consumer products, food and drugs, medical supplies and equipment, chemicals, hazardous materials, etc.
Intangible can include, for example, computer data, software code,
communications, trade secrets, intellectual property, medical histories and
other sensitive personnel data, instrument calibration, sterility of medical
The “harm” we wish to avoid can include theft, sabotage, tampering, destruction, vandalism, espionage, or counterfeiting. Physical methods for protection can include guards, guns, fences, access control, biometrics, closed-circuit TV cameras, intrusion detectors, locks, safes, vaults, and tamper-indicating seals…plus a lot of other things. Cyber security, cryptography, forensics, and background investigations are