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
考研
Using only a few computers, researchers at the federal Idaho National Laboratory managed to launch a cyberattack that crippled a
Using only a few computers, researchers at the federal Idaho National Laboratory managed to launch a cyberattack that crippled a
admin
2017-04-13
68
问题
Using only a few computers, researchers at the federal Idaho National Laboratory managed to launch a cyberattack that crippled an electricity generator earlier this year. The test, performed on a replica of common power plant control systems that operate over the Internet, tricked the machine into operating at levels that caused it to smoke and then destroy itself. Funded by the Department of Homeland Security(DHS), this was an unsettling demonstration of how vulnerable America’s critical infrastructure is to online assaults.
As early as this week, the Bush administration is expected to request significant new funding to ratchet up its cybersecurity efforts. Under a new initiative, a broad set of federal agencies would coordinate the monitoring and defense of government networks, as well as private systems that operate key services like electricity, telecommunications, and banking. But officials are divided over how much of the program, which will be run by DHS, to discuss publicly because of the sizable involvement of U.S. intelligence agencies.
The sensitivity also reflects how officials increasingly view cybersecurity as a national security concern, with threats coming not only from whiz-kid hackers but also foreign intelligence agencies and militaries. The nation’s computer networks "are under persistent attack now," warns Joel Brenner, the nation’s top counterintelligence official.
In just the past year, officials reported that the number of cyberattacks on government computer networks more than doubled. "The adversaries are becoming more nimble, more focused, and more sophisticated in their attempts to exploit our vulnerabilities," says a DHS source. But in some ways, the private networks that operate critical infrastructure could be even more vulnerable. "There is no government entity that can require cybersecurity controls be put in place in the private sector," says Rep. Jim Langevin, chairman of a House cybersecurity subcommittee.
Currently, the government’s leading experts in cybersecurity, who work at the supersecret National Security Agency(NSA), are responsible only for guarding classified networks. As first reported in the Baltimore Sun, the new effort envisages expanding NSA’s cyberdefense efforts to unclassified government systems and private industry. The proposal, however, has sparked some concerns about privacy, because defending networks is such an invasive process. "In order to defend the cyberspace on which these critical systems depend, we have to be able to both monitor and control them," says Sami Saydjari, a former NSA official who runs the Cyber Defense Agency, a private consulting firm. "That’s an intelligence system, and one could use that intelligence system for good or for evil."
According to Paragraph 4, the private networks
选项
A、will be as vulnerable as government computer networks.
B、are faced with more focused and sophisticated adversaries.
C、have acquired cybersecurity controls from government entities.
D、may suffer more attacks for lack of proper cybersecurity controls.
答案
D
解析
推理判断题。第四段讲到维持重大基础设施运转的专用私人网络可能更容易受到侵袭,因为没有一个政府实体可以给它提供网络安全控制.故D项正确。
转载请注明原文地址:https://kaotiyun.com/show/m9bZ777K
0
考研英语一
相关试题推荐
WholesalepricesinJulyrosemoresharplythanexpectedandatafasterratethanconsumerprices,【C1】______thatbusinesseswer
WholesalepricesinJulyrosemoresharplythanexpectedandatafasterratethanconsumerprices,【C1】______thatbusinesseswer
WholesalepricesinJulyrosemoresharplythanexpectedandatafasterratethanconsumerprices,【C1】______thatbusinesseswer
Whennextyear’scropofhigh-schoolgraduatesarriveatOxfordUniversityinthefallof2009,they’llbejoinedbyanewface
Whennextyear’scropofhigh-schoolgraduatesarriveatOxfordUniversityinthefallof2009,they’llbejoinedbyanewface
Advancingagemeanslosingyourhair,yourwaistlineandyourmemory,right?DanaDenisisjust40yearsold,but【C1】______she’s
Itusedtobesostraightforward(直接的).Ateamofresearchersworkingtogetherinthelaboratorywouldsubmittheresultsofthei
InanewstudyreleasedbyPew,researchersfindthatwhileMillennials—peoplewhowerebornafter1981—arebacktothepre-rece
SupposeyouruniversityisgoingtohostanEnglishcontestbythenameof"GreenTravel".Writeanoticeto1)brieflyintro
【F1】Despitethegeneralnegativefindings,itisimportanttorememberthatallchildrenwholivethroughadivorcedonotbehav
随机试题
外观设计专利申请文件中的简要说明有:()()()。
RNA的生物合成发生在
老年人的脉压比年轻人大,这主要是由于
A.儿童B.青少年C.青年D.壮年E.老年原发性骨骺骨软骨病多见于
下列引起心肌炎非感染性因素有
初步可行性研究是在()研究的基础上,对项目方案进行初步的技术、经济、社会、环境评价,对项目是否可行做出初步判断。
下列关于净资产收益率的说法,错误的是()。
投融资和票据转贴现业务具有资金调控蓄水池和信贷规模调节器的作用。()
东亚人看起来更谦虚,但心理学研究表明,和接受其他文化熏陶的人相比,他们也一样充满骄傲和自信。某研究团队招募了40名志愿者参与研究,其中一半来自东亚国家,剩下的来自西方国家。他们向这些志愿者展示大量正面和负面的词语,并询问他们哪些形容词适合自己。结果,志愿者
有气象专家指出:全球变暖已经成为人类发展最严重的问题之一,南北极地区的冰川由于全球变暖而加速融化,已导致海平面上升;如果这一趋势不变,今后势必淹没很多地区,但近几年来,北半球许多地区的民众在冬季感到相当寒冷,一些地区甚至出现了超强降雪和超低气温,人们觉得对
最新回复
(
0
)