首页
登录
职称英语
1 Researchers uncovered a serious flaw in the underlying technology for nearly
1 Researchers uncovered a serious flaw in the underlying technology for nearly
游客
2023-12-20
33
管理
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." [br] 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://tihaiku.com/zcyy/3291027.html
相关试题推荐
Intheinformationtechnologyindustry,itiswidelyacknowledgedthathoww
Intheinformationtechnologyindustry,itiswidelyacknowledgedthathoww
Intheinformationtechnologyindustry,itiswidelyacknowledgedthathoww
Intheinformationtechnologyindustry,itiswidelyacknowledgedthathoww
[originaltext]W:Whatareyoulaughingabout?M:Ijustsawtheseriousadverti
Researchershaveknownthatsecondhandsmokecanbejustasdangerousforno
Researchershaveknownthatsecondhandsmokecanbejustasdangerousforno
Thereisabasichypothesisthatthemajorityofseriousmotoringoffencesa
Thereisabasichypothesisthatthemajorityofseriousmotoringoffencesa
Abluesedannearlysideswipesmycar.Thedrivergivesmeaweirdlook.No
随机试题
Whilesomeinternationalcouriersareshowingsignsofexhaustion,EMS(Expr
SydneyOperaHousemustbeoneofthemostrecognizableimagesofthemodern
Tounderstandthemarketingconcept,itisonlynecessarytounderstandthe
A股份有限公司(以下简称A公司)是从事化工产品生产经营的大型上市企业。20
下列选项中,不属于CPU的组成部分的是()。A.指令寄存器 B.指令译码器
悬臂梁的载荷如图,若集中力偶m在梁上移动,梁的内力变化情况是( )。 A.剪
外科治疗消化性溃疡的目的是A.治愈溃疡,消除症状,防止复发 B.去除溃疡病灶
患者,女,35岁。发热、咽痛1天。查体:扁桃体Ⅱ度肿大,有脓点。实验室检查:血清
对基差的描述正确的是()。A.在正向市场上,收获季节时基差扩大 B.在正向市
作为合同法律关系主体的自然人必须具备()能力。A.完全民事行为 B.限制民事行
最新回复
(
0
)