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
1 Researchers uncovered a serious flaw in the underlying technology for nearly all Internet traffic, a discovery that led to an
1 Researchers uncovered a serious flaw in the underlying technology for nearly all Internet traffic, a discovery that led to an
admin
2010-01-18
29
问题
1 Researchers uncovered a serious flaw in the underlying technology for nearly all Internet traffic, a discovery that led to an urgent and secretive international effort to prevent global disruptions of Web surfing, e-mails and instant messages.
2 The British government announced the vulnerability in core Internet technology on Tuesday. Left unaddressed, experts said, it could allow hackers to knock computers offline and broadly disrupt vital traffic-directing devices, called routers, that coordinate the flow of data among distant groups of computers.
3 "Exploitation of this vulnerability could have affected the glue that holds the Internet together," said Roger Cumming, director for England’s National Infrastructure Security Coordination Centre.
4 The Homeland Security Department issued its own cyberalert hours later that attacks "could affect a large segment of the Internet community." It said normal Internet operations probably would resume after such attacks stopped. Experts said there were no reports of attacks using this technique.
5 The risk was similar to Internet users "running naked through the jungle, which didn’t matter until somebody released some tigers," said Paul Vixie of the Internet Systems Consortium Inc.
6 "It’s a significant risk," Vixie said. "The larger Internet providers are jumping on this big time. It’s really important this just gets fixed before the bad guys start exploiting it for fun and recognition."
7 The flaw affecting the Internet’s "transmission control protocol," or TCP, was discovered late last year by a computer researcher in Milwaukee. Paul Watson said he identified a method to reliably trick personal computers and routers into shutting down electronic conversations by resetting the machines remotely.
8 Routers continually exchange important updates about the most efficient traffic routes between large networks. Continued successful attacks against routers can cause them to go into a standby mode, known as "dampening," that can persist for hours.
9 Experts previously said such attacks could take between four years and 142 years to succeed because they require guessing a rotating number from roughly 4 billion possible combinations. Watson said he can guess the proper number with as few as four attempts, which can be accomplished within seconds.
10 Cisco Systems Inc., which acknowledged its popular routers were among those vulnerable, distributed software repairs and tips to otherwise protect large corporate customers. There were few steps for home users to take; Microsoft Corp. said it did not believe Windows users were too vulnerable and made no immediate plans to update its software.
11 Using Watson’s technique to attack a computer running Windows "would not be something that would be easy to do," said Steve Lipner, Microsoft’s director for security engineering strategy.
12 Already in recent weeks, some U. S. government agencies and companies operating the most important digital pipelines have fortified their own vulnerable systems because of early warnings communicated by some security organizations. The White House has expressed concerns especially about risks to crucial Internet routers because attacks against them could profoundly disrupt online traffic.
13 "Any flaw to a fundamental protocol would raise significant concern and require significant attention by the folks who run the major infrastructures of the Internet," said Amir Yoran, the government’s cyber security chief. The flaw has dominated discussions since last week among experts in security circles.
14 The public announcement coincides with a presentation Watson expects to make Thursday at an Internet security conference in Vancouver, British Columbia, where Watson said he would disclose full details of his research. Watson predicted that backers would understand how to begin launching attacks "within five minutes of walking out of that meeting."
At the end of the article, the author seems to suggest_________.
选项
A、there is no solution to the flaw in the Internet technology
B、there is much worry within the academic circle about Internet security
C、US government is indifferent to the hacker attacks
D、Internet traffic is easily vulnerable to hack attacks
答案
D
解析
本题为细节归纳题。据第12段第2句可排除C。A与B都没有原文的支持。据最后1段最后1句可进一步确定D。
转载请注明原文地址:https://kaotiyun.com/show/h3vO777K
0
专业英语八级
相关试题推荐
A、Thatofacreator.B、Thatofare-creator.C、Thatofareceiver.D、Thatofaperformer.C
DeclanMayes,PresidentoftheMusicBuyersAssociation,isfuriousatarecentannouncementbytherecordingindustryregarding
Wearenotwhowethinkweare.TheAmericanself-imageissuffusedwiththegoldenglowofopportunity.WethinkoftheUni
Justasworldoilscarcityisalreadycausinginternationalconflicts,sowillthescarcityofwaterreachapointwherewarswi
A、MissAllanhasjustinheritedafortune.B、MissAllandoesn’tlikehercolleague.C、MissAllanpreferstosharetheroomwith
Women’smindsworkdifferentlyfrommen’s.Atleast,thatiswhatmostmenareconvincedof.Psychologistsviewthesubjecteith
Theterm"Americandream"wasfirstusedin【B1】______inanovelwrittenbyHoratioAlger:RaggedDick.Themessagewas:Nomatte
LasVegaswasfounded【B1】______yearsagoandwasofficially【B2】______in1905.Sincethen,LasVegashastransformeditselfint
A、Itsaimistoshocktheaudiencehomeandaboard.B、ItisarealisticsituationdramaonsocialproblemsinLondon.C、Itisth
诸位毕业同学:你们现在要离开母校了,我没有什么礼物送你们,只好送你们一句话罢。这一句话是:“不要抛弃学问。”以前的功课也许有一大部分是为了这张毕业文凭,不得已而做的,从今以后,你们可以依自己的心愿去自由研究了。趁现在年富力强的时候,努力做一
随机试题
下图为某计算机主机示意图,各部分之间的连线表示数据通路,数据传送方向如箭头所示。简述取指令的数据通路。
C类IP地址可包含主机台数最多为_________。
肺心病患者高度水肿PaCO27.98kPa(60mmHg),心率114次/分,下列哪种治疗较为合理
足太阴脾经在胸部循行距前正中线旁开多少寸
乙杀丙,见丙痛苦不堪,心生悔意,欲将丙送医。路人甲劝阻乙救助丙,乙遂离开,丙死亡。关于甲的行为定性,下列哪一选项是正确的?()
将大型工程(),在竞争有一定充分性的条件下可能会获得更加有利的投标报价。
莫笑农家腊酒浑,_____。山重水复疑无路,_____。(陆游《游山西村》)(2)风急天高猿啸哀,_____。无边落木萧萧下,_____。(杜甫《登高》)
中国已成为世界第四大旅游目的地国,但我们的旅游纪念品产业发展尚不尽如人意,产品雷同、低档、缺乏创意者比比皆是,许多游客都抱怨买不到中意的旅游纪念品。有资料显示,我国旅游购物收入仅占旅游总收入的20%,而在世界发达国家,这一指标可达50%以上。偌大的一个市场
KellySortinohadatoughtimerecallingwhatshe’daccomplishedattheendofeachbusyworkday.Herjobasheadoftheupper
TheU.S.govemmentisopposedtothetransactionbecauseitisafraidthat______
最新回复
(
0
)