首页
登录
职称英语
They may be just passing your office, computer bag slung over one shoulder.
They may be just passing your office, computer bag slung over one shoulder.
游客
2023-11-09
35
管理
问题
They may be just passing your office, computer bag slung over one shoulder. Or they may be sitting in a car outside it, casually tapping away at a laptop. They look like innocent passers-by. In fact, they are stealing your corporate secrets.
Drive-by hacking is the trendy term given to the practice of breaking into wireless computer networks from outside the buildings that house them. A recent study in the UK, sponsored by RSA Data Security, found that two-thirds of organizations with wireless networks were risking their data in this way. Security experts patrolled several streets in the City of London seeking evidence of wireless networks in operation.
Of 124 that they identified, 83 were sending data without encrypting them. Such data could readily be picked up by a passer-by armed only with a portable computer, a wireless modem and a few pieces of software that can be freely downloaded from the Internet.
The data could include sensitive company documents containing valuable information. Or they could be e-mail identities and passwords that could be used by hackers to log into corporate networks as if they were legitimate users.
Most companies using wireless networking technology do not take even the simplest of precautions to protect their data. Nearly all wireless network technology comes with some basic security features that need only to be activated in order to give a minimum level of security, for example, by encrypting the data being passed over the network.
Raymond Kruck, business development manager at Check Point Software, a security technology specialist, believes this could be partly a psychological problem. People see the solid walls of their building as bulwarks and forget that wireless networks can extend up to 200 meters beyond physical walls.
Companies without any security at all on their wireless networks make it risibly easy for hackers to break in. Switching on the security that comes with the network technology should be automatic. Then there are other basic steps a company can take, says Mr. Kruck, such as changing the passwords on the network from the default setting.
Companies can also install firewalls, which form a barrier between the internal network and the public Internet. They should also check their computer records regularly to spot any abnormal activity, which might betray the presence of a hacker. [br] Without firewalls, companies using wireless networks
选项
A、cannot operate normally.
B、should turn to passwords.
C、will be easily attacked by hackers.
D、can still spot the activities of hackers.
答案
D
解析
最后一段的两句话分别介绍了两种加强网络安全的方法,且两种方法没有必然的关联,因此,即使没有用首句提到的firewalls,还可以按第2句介绍的检查电脑记录的方法来发现黑客的入侵活动,由此可见,本题应选D。
转载请注明原文地址:https://tihaiku.com/zcyy/3171763.html
相关试题推荐
WhatwastheboxofficeofTheFifthElemento-nitsfirstweekend?[br][origi
WhatwastheboxofficeofTheFifthElemento-nitsfirstweekend?[br][origi
WhatwastheboxofficeofTheFifthElemento-nitsfirstweekend?[originaltex
Outsidemyofficewindow,thereisfire_______ontheright.A、ladderB、escapeC
Newandbizarrecrimeshavecomeintobeingwiththeadventofcomputertec
Soonaftertheshooting,"NoTrespassing"signsappearedin______colorsaround
Iwasimpressedbytherangeof______accessoriesofmymicrocomputerthatwere
Mr.Smithhadanunusual______:hewasfirstanofficeclerk,thenasailor,an
Withtheintroductionofthecomputer,librariestodayarequitedifferentfrom
Computerpeopletalkalotabouttheneedforotherpeopletobecome"comput
随机试题
Oneofthegoodthingsformeninwomen’sliberationisthatmennolongerh
档案室应认真执行有关文件材料归档范围的规定,从组织上和制度上保证档案的完整齐全。
混业经营体制的表现形式有()。A.职能银行 B.单一银行 C.全能银行 D
下列哪种药对洋地黄中毒引起的快速型心律失常疗效最佳()A:苯妥英钠 B:阿托
成孔成槽质量检测时泥浆指标应符合的技术性能要求是()A.ρ≤1.20g/cm3
导致气消的情绪变化是( )。A.怒 B.喜 C.思 D.悲 E.恐
简述现代企业人力资源管理各个历史发展阶段的特点。
人在每一瞬间,将心理活动选择了某些对象而忽略了另一些对象。这一特点指的是注意的(
图示正弦稳态电路发生谐振时,安培表A1的读数为12A,安培表A2的读数为20A,
毛果芸香碱引起瞳孔缩小的机制是A.激动瞳孔括约肌的M受体 B.阻断瞳孔括约肌的
最新回复
(
0
)