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security    音標拼音: [sɪkj'ʊrəti]
n.
安全,安全性,防護物,保衛,可靠性,擔保人,抵押品,保證金

安全,安全性,防護物,保衛,可靠性,擔保人,抵押品,保証金

security
安全; 安全性

security
保全 安全

security
n 1: the state of being free from danger or injury; "we support
the armed services in the name of national security" [ant:
{insecurity}]
2: defense against financial failure; financial independence;
"his pension gave him security in his old age"; "insurance
provided protection against loss of wages due to illness"
[synonym: {security}, {protection}]
3: freedom from anxiety or fear; "the watch dog gave her a
feeling of security"
4: a formal declaration that documents a fact of relevance to
finance and investment; the holder has a right to receive
interest or dividends; "he held several valuable securities"
[synonym: {security}, {certificate}]
5: property that your creditor can claim in case you default on
your obligation; "bankers are reluctant to lend without good
security" [synonym: {security}, {surety}]
6: a department responsible for the security of the
institution's property and workers; "the head of security was
a former policeman" [synonym: {security}, {security department}]
7: a guarantee that an obligation will be met [synonym: {security},
{surety}]
8: an electrical device that sets off an alarm when someone
tries to break in [synonym: {security system}, {security
measure}, {security}]
9: measures taken as a precaution against theft or espionage or
sabotage etc.; "military security has been stepped up since
the recent uprising" [synonym: {security}, {security measures}]

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 or safety; hence, assurance;
certainty.
[1913 Webster]

His trembling hand had lost the ease,
Which marks security to please. --Sir W.
Scott.
[1913 Webster]
(b) Hence, carelessness; negligence; heedlessness.
[1913 Webster]

He means, my lord, that we are too remiss,
Whilst Bolingbroke, through our security,
Grows strong and great in substance and in
power. --Shak.
[1913 Webster]
(c) Freedom from risk; safety.
[1913 Webster]

Give up yourself merely to chance and hazard,
From firm security. --Shak.
[1913 Webster]

Some . . . alleged that we should have no
security for our trade. --Swift.
[1913 Webster]

2. That which secures or makes safe; protection; guard;
defense. Specifically:
(a) Something given, deposited, or pledged, to make
certain the fulfillment of an obligation, the
performance of a contract, the payment of a debt, or
the like; surety; pledge.
[1913 Webster]

Those who lent him money lent it on no security
but his bare word. --Macaulay.
[1913 Webster]
(b) One who becomes surety for another, or engages himself
for the performance of another's obligation.
[1913 Webster]

3. An evidence of debt or of property, as a bond, a
certificate of stock, etc.; as, government securities.
[1913 Webster]

Syn: Protection; defense; guard; shelter; safety; certainty;
ease; assurance; carelessness; confidence; surety;
pledge; bail.
[1913 Webster]

188 Moby Thesaurus words for "security":
Easy Street, aegis, affluence, aplomb, armament, armor, arrogance,
aspiration, assumption, assurance, assured faith, assuredness,
asylum, authenticity, authoritativeness, bail, balance,
balanced personality, bamboo curtain, barrier of secrecy,
bed of roses, belief, blackout, bond, calculability, care,
censorship, certainty, certification, certitude,
cheerful expectation, clear sailing, clover, cocksureness,
collateral, comfort, confidence, confidentness, constancy,
conviction, cool, courage, curtain, custodianship, custody,
dependability, dependence, deposit, desire, doomed hope, earnest,
ease, easy circumstances, equilibrium, expectation, fair prospect,
faith, faithworthiness, fastness, felicity, fervent hope, firmness,
fleshpots, gage, good cheer, good hope, gracious life,
gracious living, great expectations, guarantee, guaranty, guard,
guarding, happiness, harmlessness, high hopes, homeostasis, hope,
hopeful prognosis, hopefulness, hopes, hoping, hoping against hope,
hubris, hush-up, immunity, imperturbability, insurance,
invariability, invincibility, invulnerability, iron curtain,
ironbound security, lap of luxury, life of ease, loaves and fishes,
luxury, nerve, oath of secrecy, official secrecy, overconfidence,
oversureness, overweening, overweeningness, pall, pawn, pledge,
poise, pomposity, positiveness, prayerful hope, predictability,
presumption, pride, promise, prospect, prospects, prosperity,
prosperousness, protection, refuge, reliability, reliance,
repression, risklessness, rootedness, safeguard, safeguarding,
safeness, safety, sanctuary, sang-froid, sanguine expectation,
seal of secrecy, secureness, self-assurance, self-confidence,
self-importance, self-reliance, settled belief, shelter, shield,
smothering, solidity, soundness, stability, stable equilibrium,
stable state, stableness, staunchness, steadfastness, steadiness,
steady nerves, steady state, stifling, strength,
subjective certainty, substantiality, success, suppression,
sureness, surety, surveillance, the affluent life, the good life,
thriving condition, token, trust, trustworthiness,
undeflectability, unerringness, uniformity, unshakable nerves,
unshakableness, upward mobility, validity, veil, veil of secrecy,
velvet, ward, warrant, warranty, weal, wealth, welfare, well-being,
well-grounded hope, wraps

Protection against unauthorized access to, or
alteration of, information and system resources including
{CPUs}, {storage devices} and programs.

Security includes:

* {confidentiality} - preventing unauthorized access;
{integrity} - preventing or detecting unauthorized
modification of information.

* {authentication} - determining whether a user is who they
claim to be.

* {access control} - ensuring that users can access the
resources, and only the resources, that they are authorised
to.

* {nonrepudiation} - proof that a message came from a certain
source.

* availability - ensuring that a system is operational and
accessible to authorised users despite hardware or software
failures or attack.

* privacy - allowing people to know and control how
information is collected about them and how it is used.

Security can also be considered in the following terms:

* physical security - who can touch the system to operate or
modify it, protection against the physical environment - heat,
earthquake, etc.

* operational/procedural security - who is authorised to do or
responsible for doing what and when, who can authorise others
to do what and who has to report what to who.

* personnel security - hiring employees, background screening,
training, security briefings, monitoring and handling
departures.

* System security - User access and authentication controls,
assignment of privilege, maintaining file and {filesystem}
integrity, {backup}, monitoring processes, log-keeping, and
{auditing}.

* {network security} - protecting network and
telecommunications equipment, protecting network servers and
transmissions, combatting eavesdropping, controlling access
from untrusted networks, firewalls, and intrusion detection.

{Encryption} is one important technique used to improve data
security.

{OWASP} is the {free} and {open} application security
community.

(2007-10-05)

SECURITY. That which renders a matter sure; an instrument which renders
certain the performance of a contract. The term is also sometimes applied to
designate a person who becomes the surety for another, or who engages
himself for the performance of another's contract. See 3 Blackf. R. 431.

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