1. Scope and Nature of Security Threats. Before you can develop an effective security
program, you must determine the possibility of interference with the operational
capabilities of the installation or facility from any and all sources. Recognition of all
risks is mandatory if you are to make recommendations for physical security measures to
control or eliminate them.
a. Security threats are acts or conditions, which include human threats, that may
(1) Disruption of the installation or facility.
(2) Damage, loss, or destruction of property.
(3) Personal injury or loss of life.
(4) Compromise of defense information.
The severity of the threat depends on such variables as:
(1) The type of installation or facility.
(2) Mission or processes performed.
(3) Physical layout and construction.
(4) The geographical location.
(5) Stability of the situation.
(6) Existing state of law and order.
(7) Protection measures in effect.
2. Natural Security Threats. Security threats are classified as either natural or human.
Natural threats are usually the consequence of a natural phenomenon and are normally
not preventable by physical security measures. These threats may greatly affect security
operations by requiring an increase in protective measures or by reducing the
effectiveness of existing measures. Examples of natural threats include the following:
a. Flooding of the installation which result in property damage, destruction of
perimeter barriers and short-circuiting of intrusion detection systems (IDS). Heavy rains
or snowfalls, even though they do not result in floods, may cause some of the same
b. Storms, high winds or rain causing nuisance alarms and short-circuiting in IDS
and limiting visibility of security personnel.