阅读理解

　　They may be just passing your office, computer bag slung(悬挂)over one shoulder．Or they may be sitting in a car outside it, causally 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(巡逻)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(加密)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 legal users．

　　Most companies using wireless networking technology do not take even the simplest of measures to protect their data．Nearly all wireless network technology comes with some basic security features that need only to be activated(激活)in order to give a minimum level of security, for example, by encrypting the data being passed over the network．

　　Raymon 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 safeguards 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 ridiculously 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(默认)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．

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阅读理解

阅读下列短文，然后从各题所给的A、B、C、D四个选项中，选出最佳选项。

　　Companies often give work to an outside business that can do the job for less money than their own employees could．This is called outsourcing．Outsourcing has become a political issue in the campaign for the American presidential election in November．

　　Many companies in the United States have been moving jobs to countries where costs are much lower．Factory production jobs have moved away for years．But the jobs now also involve computer programming and other skills based on knowledge．

　　Labor groups and workers are angry．They point to reports that say the United States has lost two-and-a-half million jobs since 2001．Most were jobs in manufacturing．Some states have lost more jobs than others．But no one seems to know for sure how many jobs left the country．

　　There was a recession．Jobs were cut．Yet, so far, the economic recovery has produced fewer jobs than expected．So outsourcing has created an emotional debate．

　　Lou Dobbs has a business news program on CNN television．He keeps a list of companies that have sent jobs to foreign countries．Almost every night, Mister Dobbs talks about what he calls the "exporting of America．"

　　Gregory Mankiw [man-CUE] is the chairman of the Council of Economic Advisers to President Bush．Recently Mister Mankiw said outsourcing is probably good for the economy in the long term．He said it makes sense to import goods or services produced at lower cost．He called it "just a new way of doing international trade．"

　　Most economists would probably agree．But Democrats and Republicans criticized Mister Mankiw．He later apologized for having appeared to praise the loss of United States jobs．

　　Criticism of outsourcing has led some people to condemn free trade．They argue that if jobs are lost to foreign countries, then America should seek protective measures．

　　The director general of the World Trade Organization does not see it that way．Supachai Panitchpakdi says one-third of all economic growth in the United States since 1990 resulted from international trade．

　　Mister Supachai says training and education can create new opportunities for workers．He says exports have helped create five-million new jobs in America in the last ten years．He says those jobs pay ten-percent above the average．

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