Security is the degree of protection to safeguard a nation, union of nations, persons or person against danger, damage, loss, and crime. Security as a form of protection are structures and processes that provide or improve security as a condition. The Institute for Security and Open Methodologies (ISECOM) in the OSSTMM 3 defines security as "a form of protection where a separation is created between the assets and the threat". This includes but is not limited to the elimination of either the asset or the threat. Security as a national condition was defined in a United Nations study (1986): so that countries can develop and progress safely.

Security has to be compared to related concepts: safety, continuity, reliability. The key difference between security and reliability is that security must take into account the actions of people attempting to cause destruction.

Different scenarios also give rise to the context in which security is maintained:

  • 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.

Read more about Security:  Perceived Security Compared To Real Security, Categorizing Security, Security Concepts, Security Management in Organizations

Other articles related to "security":

Xpages - Security
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President Of Ireland - Security and Transport
... Uachtaráin is protected by armed guards at all times and is encircled by security fencing ... At all times the President travels with an armed security detail which is provided by the SDU (Special Detective Unit - an elite wing of the Irish police force) ...
Computer Security
... Computer security is information security as applied to computers and networks. ...
Transportation In The United States - Ownership and Jurisdiction
... The Transportation Security Administration has provided security at most major airports since 2001 ... all aspects of transportation, except for customs, immigration, and security, which are the responsibility of the United States Department of Homeland Security ... Coast Guard is the primary enforcer of law and security on US waterways ...
Computer Security - Security By Design
... One approach to computer security is to consider security as one of the base features ... Audit trails tracking system activity, so that when a security breach occurs, the mechanism and extent of the breach can be determined ...

Famous quotes containing the word security:

    A well-regulated militia being necessary to the security of a free State, the right of the people to keep and bear arms shall not be infringed.
    Second Amendment, U.S. Constitution (1791)

    The three great ends which a statesman ought to propose to himself in the government of a nation, are,—1. Security to possessors; 2. Facility to acquirers; and, 3. Hope to all.
    Samuel Taylor Coleridge (1772–1834)

    Thanks to recent trends in the theory of knowledge, history is now better aware of its own worth and unassailability than it formerly was. It is precisely in its inexact character, in the fact that it can never be normative and does not have to be, that its security lies.
    Johan Huizinga (1872–1945)