首页
外语
计算机
考研
公务员
职业资格
财经
工程
司法
医学
专升本
自考
实用职业技能
登录
外语
COMPUTER SECURITY It is believed that the problem of computer security has changed over a period of time as businesses, thro
COMPUTER SECURITY It is believed that the problem of computer security has changed over a period of time as businesses, thro
admin
2011-02-08
71
问题
COMPUTER SECURITY
It is believed that the problem of computer security has changed over a period of time as businesses, through an increased use of information technology (IT), have become more and more dependent on information and the associated information systems (IS). However, at the same time, there has been limited change in the implemented security or safeguards to these information systems. In fact many executives or managers fail to even identify the relevant requirement for security or policies.
A. The Internet has been roughly doubling in size every year, and the associated security incidents have been running in parity. Even if the percentage of malicious users is small, the increase in size of the Internet and in the number of incidents of failed security is significant. The importance of the growth in the Internet can be highlighted by the fact that in July 1991, 33% of Internet users were from the commercial sector, whereas in July 1996, this figure had risen to 50%.
B. In 1988, the Morris "worm" was introduced on the Internet to invade, attack and replicate itself on the network. The response was to shut down E-mail and connectivity. However, the "fixes" were to be distributed via E-mail and so the solution was self-defeating. As a result of this worm virus, CERT (Computer Emergency Response Team) was formed, with the Australian version (AUSCERT) starting in 1992.
C. One of the problems with Internet security is the fact that the incidents are increasing in sophistication. One of the reasons for this has been the increasing availability of toolkits. Although these toolkits are designed to assist computer systems designers to protect and develop their sites, they also allow relatively ignorant intruders to carry out increasingly complex incidents with the utilisation of many routers and disguises to reach their "target". According to a US Department of Defence report, less than 1% of incidents are identified but 65% of these are successful. Another thing to bear in mind with intruders and hackers is that they do not respect geographical or administrative boundaries, or time zones. They may be geographically dislocated from the point of attack and therefore operating in "off-duty" hours.
D. The thing to remember with security is that the system administrators must get it fight all the time; the intruder must get it right just once. Evidence of this is easy to find. In 1997, a teenager hacked into a Bell Atlantic network. His hacking crashed the computer and resulted in 600 homes, a regional airport and emergency services being without telephone communications for six hours. And what was the punishment for this offence? Two years of probation, community service and a fine of US$5,000.
E. Governments are getting tough on cyber crimes, especially in the wake of September 11th. These crimes are being linked to national security, which in the US is now of major concern to government officials and the general public alike. And the government has been swift to act. In late 2001, the US Patriot Act was introduced. This Act increased the maximum sentence for breaking into a computer from five to ten years. Then in July 2002, the House of Representatives approved the Cyber Security Enhancement Act. Now if a cyber crime results in the death of an individual, the offender could face a life sentence. There has been additional fall-out from the September 11th attacks with the FBI and other government security agencies dramatically escalating their monitoring of the Internet. This has pushed some hackers further underground, fearful that what they had previously been doing out of boredom or challenge could now be viewed as an act of terrorism.
F. On the other hand, the events of September 11th have led to some ex-hackers using their extensive knowledge and experience to join forces with security forces to aid the fight against terrorism.
G. However, even with the increased threats of punishment, computer viruses and incidents of hacking continue to be widespread. Long-time security measures which have been utilised by companies and individuals are not fail-safe. One of the more prevalent IS security measures is the use of firewalls, which "filter" the data entering/leaving the corporate IS. It is true that these firewalls have a number of advantages, nevertheless, they should not be seen as a panacea to all IS security woes, merely an enhancement. They can provide a false sense of security and have limited protection from internal attackers. In short, the corporate world needs to realise that computer security will be an on-going problem and expense.
Paragraph G ______
选项
答案
IX
解析
转载请注明原文地址:https://kaotiyun.com/show/tOVO777K
本试题收录于:
雅思阅读题库雅思(IELTS)分类
0
雅思阅读
雅思(IELTS)
相关试题推荐
Ifpisaprimenumbergreaterthan11,andpisthesumofthetwoprimenumbersxandy,thenxcouldbewhichofthefollowin
OnewaytosolvethisproblemistolookfortheLowestCommonDenominator(LCD).Thesmallestnumberthatboth4and8dividee
Thenumber0.001ishowmanytimesgreaterthanthenumber(0.0001)2?
Ifjandkareevenintegersandj
Workingaloneatitsconstantrate,machineAtakes3hourstoproduceabatchofidenticalcomputerparts.Workingaloneatits
McClary’sposition,concerningtheprocessbywhichmusicisgenderedasmasculineorfeminine,isthatsocially-groundedc
Aroundtheworld,thebicycleisafavoritemethodoftransportation,especiallyLineinChina.Withitslargeurbanpopulation
Aroundtheworld,thebicycleisafavoritemethodoftransportation,especiallyLineinChina.Withitslargeurbanpopulation
AstheworksofdozensofwomenwritershavebeenrescuedfromwhatE.P.Thompsoncalls"theenormouscondescensiono
随机试题
患者因腰部用力不当,症见腰部刺痛,仰俯不便,局部疼痛拒按,舌有瘀斑,治宜选用下列哪个方剂
男性,70岁,糖尿病史5年,体形稍肥胖,3天前体检时血压160/85mmHg,来诊。检查:BP165/80mmHg。心率80次/分,心电图正常范围,血Cr100mmol/L。高血压小动脉病变的病理改变是
二尖瓣关闭不全见二尖瓣狭窄见
承包单位可以采取()手段承揽工程。
下列选项不属于遥感图像的直接解译标志的是()。
依据《危险化学品安全管理条例》的规定,重复使用的危险化学品的包装物、容器的检查记录至少应当保存()年。
某化妆品生产企业是增值税一般纳税人,2017年3月发生如下业务:(1)采取直接收款方式销售生产的A类面霜1500瓶,每瓶20克,每瓶不含税售价400元,款项702000元已收存银行。(2)销售生产的B类护肤液50箱,每箱20瓶,每瓶60毫升,每瓶含税售
某首饰制造企业(增值税一般纳税人),主要生产加工并零售金银首饰、钻石饰品和其他非金银首饰,2012年2月发生以下业务:(1)生产销售玉石首饰取得不含税收入129.8万元,镀金首饰不含税收入28万元;(2)采取“以旧换新”方式向消费者
甲向某银行贷款30万元,约定乙作为保证人承担一般担保责任,贷款到期后,甲未能按约定还本付息,银行随即要求乙还本付息。对此,下列说法正确的是()。
曲线y=x2的渐近线方程为________.
最新回复
(
0
)