security

security
   Operating system controls used by the network administrator to limit users' access to approved areas.
   The National Security Agency document called "Trusted Computer System Evaluation Criteria" (TCSEC) specifies security levels that vendors must follow to comply with Department of Defense security standards.
   This publication details standards for security levels used to control access to computer systems from Class A1, the highest verifiable security level, to Class D, the lowest, which has no security.
   Class C2 is the security level most appropriate to the business world; higher levels of security tend to intrude too much into normal commercial working patterns. C2 security requires that the operating system provide individual logins with separate accounts and a verifiable audit trail, that resources have owners, and that files and other system resources be protected from other processes that might corrupt them. An operating system that lets anyone have unfettered access, such as MS-DOS or the MacOS, falls into the D category. C1 and C2 levels can be implemented in a commercial environment. After the B1 level, the computing environment changes radically, and many of the mandatory access-control mechanisms become impractical for normal commercial operations.
   See also intruder.

Dictionary of networking . 2014.

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  • 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.… …   Wikipedia

  • security — se·cur·i·ty /si kyu̇r ə tē/ n pl ties 1 a: something (as a mortgage or collateral) that is provided to make certain the fulfillment of an obligation used his property as security for a loan b: surety see also …   Law dictionary

  • security — [si kyoor′ə tē] n. pl. securities [ME securite < L securitas < securus: see SECURE] 1. the state of being or feeling secure; freedom from fear, anxiety, danger, doubt, etc.; state or sense of safety or certainty 2. something that gives or… …   English World dictionary

  • Security — Se*cu ri*ty, n.; pl. {Securities}. [L. securitas: cf. F. s[ e]curit[ e]. See {Secure}, and cf. {Surety}.] 1. The condition or quality of being secure; secureness. Specifically: (a) Freedom from apprehension, anxiety, or care; confidence of power… …   The Collaborative International Dictionary of English

  • security — Something given or pledged to a person who is lending money in order to secure or guarantee payment of that debt. (Dictionary of Canadian Bankruptcy Terms) Under Title 11 U.S.C. Section 101: (49) The term security (A) includes (i) note; (ii)… …   Glossary of Bankruptcy

  • Security — Widefield, CO U.S. Census Designated Place in Colorado Population (2000): 29845 Housing Units (2000): 10177 Land area (2000): 14.522255 sq. miles (37.612466 sq. km) Water area (2000): 0.493456 sq. miles (1.278046 sq. km) Total area (2000):… …   StarDict's U.S. Gazetteer Places

  • Security, CO — Security Widefield, CO U.S. Census Designated Place in Colorado Population (2000): 29845 Housing Units (2000): 10177 Land area (2000): 14.522255 sq. miles (37.612466 sq. km) Water area (2000): 0.493456 sq. miles (1.278046 sq. km) Total area… …   StarDict's U.S. Gazetteer Places

  • security — (n.) mid 15c., condition of being secure, from L. securitas, from securus (see SECURE (Cf. secure)). Meaning freedom from care is from 1550s; that of something which secures is from 1580s; safety of a state, person, etc. is from 1941. Legal sense …   Etymology dictionary

  • security — [n1] safety, protection aegis, agreement, armament, armor, asylum, bail, bond, care, collateral, compact, contract, covenant, cover, custody, defense, earnest, freedom, guarantee, guard, immunity, insurance, pact, pawn, pledge, precaution,… …   New thesaurus

  • security — surety, guaranty, *guarantee, bond, bail Analogous words: *pledge, earnest, token …   New Dictionary of Synonyms

  • security — ► NOUN (pl. securities) 1) the state of being or feeling secure. 2) the safety of a state or organization against criminal activity such as terrorism or espionage. 3) a thing deposited or pledged as a guarantee of the fulfilment of an undertaking …   English terms dictionary

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