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Physical Security

FORESEC Academy SecurityEssentials (I) :

Networking Concepts

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AgendaSignificance of Physical Security

Objectives- Safety

- Authorized Access

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SignificancePhysical Security is:

- Implicit in every Logical SecurityControl

- Usually based on assumptions- Often overlooked

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Keycatcher

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Skimmer

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Physical Security

Confidentiality

Integrity

Availability

Safety

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SafetySafety is #1

Impact on other objectives- Authorized Access

- Availability

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Evacuation: ProceduresEvacuation Routes

Meeting PointPosting

Practice

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Evacuation: RolesSafety Warden

Meeting Point LeaderEmployee

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True Story Evacuation of 750,000

During Hurricane Andrew, which hit Southern Florida

in August 1992, hurricane watches and warningsallowed emergency services to issue a voluntary,then mandatory, evacuation order. Eventually,more than 750,000 individuals were evacuated outof harm's way. This notification and evacuation is

considered the primary reason for the remarkablylow number of injuries and fatalities during andimmediately after the storm.

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Threats to SafetySmoke & Fire

ToxinsWater/Flood

Temperature extremes

Structural failures

Power loss

External bomb threat, civil unrest

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Smoke & FireDetective

- Smoke Detectors- Heat Sensors

Suppressive

- Sprinklers (Chemical, H2O)

- Fire Extinguishers (ABC, Halon)

- Evacuation

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Types of fire 

A: Combustible materials, such as

wood and paperB: Flammable liquids, such as

petroleum and some solvents

C: Electrical wiring and

equipment

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Types of fire

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The Effects of Smoke in Computer Rooms In the event of a suppressed fire in a computer room, careful

attention needs to be placed on computer equipment beforereturning them to operation. Fans on computer equipment willnaturally draw in dust particles and soot from a fire, distributingit over the motherboard and components of a computer.Combined with water gathered from sprinklers or other fire-

suppression equipment, powering a computer on may cause itto electrically short and fail.

Companies specializing in the recovery of electronics followinga fire recommend that their customers do nothing but call in adisaster recovery company to assess damage. Even with the

best intentions, attempting to clean the equipment or evensurrounding facilities including walls, ceilings, computer casesor racks will likely make the problem worse. An experienceddisaster recovery company will seal and localize the damageto prevent airborne materials from affecting other equipmentand extending the damage, before starting the carefulcleaning and removal process. 

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ToxinsDetective

- Specialized detectors (Radon, CO)- Third Party (News, EmergencyWarning System)

Reactive- Evacuation

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Water/FloodDetective

- Detectors (Moisture, Humidity)

- Third Party (News, Emergency Warning

System)

Corrective 

- Bilge Pump

- Evacuation

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Temperature ExtremesDetective

- ThermometerCorrective 

- Redundancy - Heater / AC

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