Security in general

Security is the condition of being protected against danger, loss, and criminals. In the general sense, security is a concept similar to safety. The nuance between the two is an added emphasis on being protected from dangers that originate from outside. Individuals or actions that encroach upon the condition of protection are responsible for the breach of security.

The word “security” in general usage is synonymous with “safety,” but as a technical term “security” means that something not only is secure but that it has been secured. In telecommunications, the term security has the following meanings:[1]
A condition that results from the establishment and maintenance of protective measures that ensure a state of inviolability from hostile acts or influences.
With respect to classified matter, the condition that prevents unauthorized persons from having access to official information that is safeguarded in the interests of national security.
Measures taken by a military unit, an activity or installation to protect itself against all acts designed to, or which may, impair its effectiveness.

Security has to be compared and contrasted with other related concepts: Safety, continuity, reliability. The key difference between security and reliability is that security must take into account the actions of active malicious agents attempting to cause destruction.

source: http://en.wikipedia.org/wiki/Security

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One Response to “Security in general”

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