信息与通信工程专业英语02part021

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1、第2篇课　　文Part3信息工程Part3InformationEngineering信息工程Unit11InformationSecurityUnit12ImageProcessingUnit13MultimediaUnit11InformationSecurityWhereDoSecurityThreatsComefrom?Imagineyouworkforanorganization.1Youproducegoodsand/orservices.Theyhavevalueinthemarketplace,oryouwouldnotbedoin

2、git.2Yourorganizationtooktherisks,didtheresearch,andmadetheinvestments.Youareentitledtothefruitsofyourlabor.Unfortunately,thereisalwaysahumanelementeagertotakeadvantageoftheworkdonebyyouandothers,yetwithoutthecustomaryquidproquo:paymentforservicesrenderedorforproductprovided.3

3、Directtheftofproductsorservicesisasimplemotivation.Morecomplexisthetheftofinformationforavarietyofnefariouspurposes:toimproveacompetitor’sposition;tofurtherapoliticalaim;todenyyoutimelyaccesstocorrectinformationthatyouneedtosurvive;togivetheperpetratoranegohigh.Securityisentir

4、elyapeopleissue.Itispeoplewhocausesecurityproblems,notmachinesorsystems.Fortunately,ourhigh-technologytoolscanalsoservetothwartpeoplewhowoulddousharm,justthewaywelockourdoorsagainstintruders.Thatsecurityisapeopleproblemmustbeborneinmindasanunderlyingconstantthemeinanydiscussio

5、nofsecurity.Evenwell-intentionedpeopleareaweakpoint.Well-meaningpeoplewritedownpasswordsorletothersusetheirs.Whilewetrytouse“socialengineering”internallytomodifybehaviorsothatpeoplewillkeepsecurityinmind,outsiderstrytousethesameprincipleofsocialengineeringtotalkusersoutofpassw

6、ords.Inasense,theyaretakingadvantageofourincompleteorineffectivesocialengineering,tryingtoreplaceitwiththeirown.Nowwearementallypreparedtobegintothinklikeouradversaries.Ifwecanputourselvesintheirplace,thenwecandosomerole-playingandbegintoviewoursecurityprecautionsnotjustfromth

7、einside,butfromtheoutside.Suchadualperspectiveisessentialtoeffectivesecuritymanagement.WhatCanpeopleDotoOurInformation?Theycandestroy:InformationExecutableprogramsOperatingsystemsOthercomputingorsystemresourcesDestructionincludesbothlogicaldamage(tothesysteminvolved)and/orphys

8、icaldamagetotheequipmentitself.Moresubtleandshortofdestructio