Chapter 9 Multilateral Security

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1、CHAPTER9MultilateralSecurityPrivacyisatransientnotion.ItstartedwhenpeoplestoppedbelievingthatGodcouldseeeverythingandstoppedwhengovernmentsrealisedtherewasavacancytobefilled.—RogerNeedhamYouhavezeroprivacyanyway.Getoverit.—ScottMcnealy9.1IntroductionOftenourgoalisnotto

2、preventinformationflowing‘down’ahierarchybuttopreventitflowing‘across’betweendepartments.Relevantapplicationsrangefromhealthcaretonationalintelligence,andincludemostapplicationswheretheprivacyofindividualcustomers’,citizens’orpatients’dataisatstake.Theyaccountforasignifi

3、cantproportionofinformationprocessingsystemsbuttheirprotectionisoftenpoorlydesignedandimplemented.Thishasledtoanumberofexpensivefiascos.Thebasicproblemisthatifyoucentralisesystemscontainingsensitiveinformation,youriskcreatingamorevaluableassetandsimultaneouslygivingmor

4、epeopleaccesstoit.Thisisnowapressingproblemintheworldof‘Web2.0’asonlineapplicationsamasspetabytesofpeople’sprivateinformation.Andit’snotjustGoogleDocuments;anumberoforganisationsplantowarehouseyourmedicalrecordsonline.MicrosofthasannouncedHealthVault,whichwillletyourd

5、octorsstoreyourmedicalrecordsonlineinadatacentreandgiveyousomecontroloveraccess;otherITfirmshavebroadlysimilarplans.Yetprivacyactivistspointoutthathoweverconvenientthis275276Chapter9■MultilateralSecuritymaybeinanemergency,itgivesaccesstoinsurancecompanies,governmentage

6、nciesandanyoneelsewhocomesalongwithacourtorder[1332].Sowhataretherealissueswithsuchsystems,shouldtheybebuilt,ifsohowshouldweprotectthem,andarethereanyprecedentsfromwhichwecanlearn?Onelessoncomesfrombanking.Intheolddays,aprivateinvestigatorwhowantedcopiesofyourbankstat

7、ementshadtosubvertsomeoneatthebranchwhereyouraccountwaskept.Butafterbankshookedalltheirbranchesuponlineinthe1980s,theytypicallyletanytellerenquireaboutanycustomer’saccount.Thisbroughttheconvenienceofbeingabletocashacheckwhenyouareoutoftown;butit’salsomeantthatprivatee

8、yesbuyandsellyourbankstatementsforafewhundreddollars.Theyonlyhavetocorruptoneemployeeateachbank,ratherthanoneateachbranch.An