Physical Security 1.2

Question 1

Barricades/bollards

Answer 1

Prevent access. There are limits to the prevention.

Channel people through a specific access point. And keep out other things. Allow people, prevent cars and trucks.

Identify safety concerns. And prevent injuries.

Can be used to an extreme. Concreate barriers/bollards. Moats.

Question 2

Access control vestibules (see example on Video)

Answer 2

All doors normally unlocked. Opening one door causes other to lock.

All doors normally locked. Unlocking one door prevents others from being unlocked.

One door open/ other locked. When one is open, the other cannot be unlocked.

One at a time, controlled groups. Managed control through an area.

Question 3

Fencing

Answer 3

Build a perimeter. Usually very obvious. May not be what you are looking for.

Transparent or opaque. See through the fence (or not).

Robust. Difficult to cut the fence.

Prevent climbing. Razor wire. Build it high.

Question 4

Video surveillance

Answer 4

CCTV (Closed circuit television) can replace physical guards.

Camera features are important. Motion recognition can alarm and alert when something moves. Object identification can identify a license plate or persons face.

Often many different cameras. Networked together and recorded over time.

Question 5

Guard and access badges

Answer 5

Security guard. Physical protection at the reception area of a facility. Validates identification of existing employees.

Two-person integrity/ control. Minimize exposure to an attack. No single person has access to a physical asset.

Access badge. Picture, name, other details, must be work at all times. electronically logged.

Question 6

Lighting

Answer 6

More light means more security. Attackers avoid the light. Easier to see when lit. Non-IR cameras can see better.

Specialized design. Consider overall light levels. Lighting angels may be important (important for facial recognition). Avoid shadows and glare.

Question 7

Sensors

Answer 7

Infrared. Detects infrared radiation in both light and dark. Common in motion detectors.

Pressure. Detects a change in force. Floor and window sensors.

Microwave. Detects movement across large areas.

Ultrasonic. Send ultrasonic signals, receive reflected sound waves. Detect motion, collision detection, etc.