Topic 7C Flashcards
Physical security through environmental design
uses the built environment to enhance security and prevent crime.
This approach designs physical spaces, buildings, and landscapes to promote nonobvious security features.
Physical security via environmental design can be used in various settings, such as residential neighborhoods, commercial districts, schools, and public spaces.
physical security via environmental design can be a cost-effective way to improve security because it easily incorporates design elements into new or existing structures at a low cost.
A barricade
is something that prevents access
What is a downside of fencing for a building?
it gives a building an intimidating appearance. Buildings that are used by companies to welcome customers or the public may use more discreet security methods.
Bollards
are generally short vertical posts made of steel, concrete, or other similarly durable materials and installed at intervals around a perimeter or entrance.
Bollards can serve several purposes, such as protecting pedestrians from vehicular traffic, preventing unauthorized vehicle access, and providing perimeter security for critical infrastructure and facilities.
Existing structures can incorporate the following security measures
Locate secure zones, such as equipment rooms, as deep within the building as possible, avoiding external walls, doors, and windows.
Use a demilitarized zone design for the physical space. Position public access areas so that guests do not pass near secure zones
some homes and offices also display signs from the security companies whose services they are using.
Use industrial camouflage to make buildings and gateways protecting high-value assets unobtrusive or create high-visibility decoy areas to draw out potential threat actors.
The flow of people should be “in and out” rather than “across and between.
“Give high-traffic public areas high visibility to hinder the covert use of gateways, network access ports, and computer equipment, and simplify surveillance.
In secure zones, position display screens or input devices away from pathways or windows. Use one-way glass only visible from the inside out so no one can look in through windows.
industrial camouflage
Methods of disguising the nature and purpose of buildings or parts of buildings.
Different types of alarms
Circuit—Uses a circuit-based alarm that sounds when the circuit is opened or closed, depending on the type of alarm. For example, this could be a door or window opening or by a fence being cut.
Noise Detection
Motion Detection
Proximity
Duress—Uses an alarm triggered manually by staff if they come under threat
Types of sensors
Infrared sensors are commonly used in motion detection systems. They detect changes in heat patterns caused by moving objects, such as a human intruder
Pressure sensors are typically installed inside floors or mats and are activated by weight.
Microwave sensors emit microwave pulses and measure the reflection off a moving object. They are often combined with infrared detectors in dual-technology motion sensors. Less likely to trigger false alarms
Ultrasonic sensors emit sound waves at frequencies above the range of human hearing and measure the time it takes for the waves to return after hitting an object.