Physical Security-System Security-Lecture Slides, Slides of Cryptography and System Security

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Physical Security

Chapter 15

Learning Objectives

 Understand the importance of physicalsecurity  Discuss the impact of location on afacility’s security  Identify major material factors whenconstructing a facility  Understand how various physical barrierscan enhance protection of vital resources continued…

Physical Controls

 When managing a network environment, itis critical to secure:  Equipment  Data  Power supplies  Wiring  Personnel with access to the location

Location and Environment

Considerations

 Visibility  Accessibility  Propensity for environmental problems

Construction

 Location of shutoff valves for water andgas lines  Location of fire detection and suppressiondevices

Physical Barriers

 Address perimeter security  Types of physical barriers  Locks  Fencing  Lighting

Preset Locks

 Typical locks thatutilize a physical lockand key  Least secure

Cipher Locks

 Programmable locks that utilize a keypad forentering a PIN or password  More expensive than preset locks  Offer more security and flexibility  Cipher lock options  Door delay  Key override  Master keyring  Hostage alarm

Cipher Locks

Biometric Locks

 Verify user’s identity by a unique personalcharacteristic  Complex, expensive, and secure

Device Locks

 Secure computer hardware and networkdevices  Types  Cable lock (best known)  Switch controls  Slot locks  Port controls  Cable traps

Cable Locks

Lighting

 Deters intruders  Provides safe environment for personnel

Physical Surveillance

 Security guards  Guard dogs