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
73
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
Whennextyear’scropofhigh-schoolgraduatesarriveatOxfordUniversityinthefallof2009,they’llbejoinedbyanewface
Large,multinationalcorporationsmaybethecompanieswhoseupsanddownsseizeheadlines.Buttoafargreaterextentthanmos
Advancingagemeanslosingyourhair,yourwaistlineandyourmemory,right?DanaDenisisjust40yearsold,but【C1】______she’s
Itusedtobesostraightforward(直接的).Ateamofresearchersworkingtogetherinthelaboratorywouldsubmittheresultsofthei
TheNHS(NationalHealthService)hasapprovedthecreationofchainsofhospitalsforthefirsttimeinitshistoryinabidtot
Mostpeoplecanidentifytheirtoppriorityatwork.Generally,itwillbethepartofthejobthatismostproductivefortheir
Mostpeoplecanidentifytheirtoppriorityatwork.Generally,itwillbethepartofthejobthatismostproductivefortheir
Thetechnologicalrevolutionsofthelasttwodecadeshaveplacedasevereburdenontheconceptoftechnologytransfer.Itisq
【F1】Despitethegeneralnegativefindings,itisimportanttorememberthatallchildrenwholivethroughadivorcedonotbehav
随机试题
Ifit______tomorrow,we______putoffthevisittotheYangpuBridge.
急性胆囊炎引起的腹痛特点是
关于肠梗阻错误的是
加有少量钴盐(氯化钴)的硅胶(二氧化硅)颗粒干燥剂
证券服务机构为证券的发行、上市、交易等证券业务活动制作、出具( )时,应当勤勉尽责,对所依据的文件资料内容的真实性、准确性、完整性进行核查和验证。
在建设新农村号召的鼓励下,某地农村成立了一家农资公司,主要经营农产品和农副产品。该农资公司近11个月的玉米销售量为:根据以上材料,回答下列问题:运用算数平均数法进行预测,则第12个月的销售量预测值为()吨。
下列支出中,属于商业银行营业外支出的是()。
Butthesuccessofscience,bothitsintellectualexcitementanditspracticalapplication,dependsupontheself-correctingc
在VisualFoxPro中,如果在表之间的联系中设置了参照完整性规则,并在删除规则中选择了“限制”,当删除父表记录时,系统的反应是()。
有如下类声明:classHow{intk;public:How():k(99){}};则类How所拥有的构造函数的数量是
最新回复
(
0
)