OS-5

*

Week-5
Reasons for Defense In-Depth

The protection of national security and other DoD assets is accomplished through the application of active and passive complementary security controls. This integration of physical security measures is also known as security-in-depth. Security-in-depth is a determination by the senior agency official that a facility’s

security program consists of layered and complementary security controls sufficient to deter, detect, and document unauthorized entry

and movement within the facility. This is accomplished through the integration of active and passive complementary physical security measures. The best way to describe how security-in-depth works is to think of an onion and all the layers it takes to get through to the center. As you begin to peel an onion, it takes more of an effort to reach the center.

*

*

Risk Management Process

In order to plan and implement effective

physical security measures, you must use the

Risk management process to determine where

and how to allocate your security resources.

The steps in the

risk management

process are:

• Identify assets

• Identify threats

• Identify vulnerabilities

• Conduct risk analysis

• Determine countermeasure options

• Make risk management decisions

*

*

Week-5 Measures

Building Protective Measures

When you look closely at all the elements it takes to

construct a building, it is easy to see how there could be

many vulnerabilities that could allow someone to enter and

possibly access information that could damage our national

Security or other DoD assets. Protective measures inside and

outside a building all play a role. Here are some examples of

vulnerabilities, as well as protective measures than can be

taken to make them more attackresistant.

*