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  3. The Internet and Internet users can be targets for hackers. Hackers are peop

The Internet and Internet users can be targets for hackers. Hackers are peop

游客2023-08-19  47
问题     The Internet and Internet users can be targets for hackers. Hackers are people who use their computers to gain【B1】______ access to information on other people’s computers, via the Internet. But there are ways to defeat the hackers.
    Until recently the opportunities for【B2】______ activities on the Internet have been low. However, the volume of business done on the Internet is growing【B3】______, as people order books and other products and make money transactions. All this is creating【B4】______ for hackers.
    Hackers are often young people who【B5】______ computers. They use them to prowl (潜行以图谋不轨)the Internet, looking for ways to【B6】______ computer systems run by banks, telephone companies and even government departments. They look for examples of credit cards and try to steal the numbers.
    Recently in America, hackers have been caught testing the security system at the Pentagon, 【B7】______ of the American Defense Department.
    "The use of credit cards to buy things on the Internet【B8】______ the issue of Internet security into one of general security," says Michael White, multi-media product manager for Clear Communications.
    "You’ve got to know your vendor, you just don’t give your credit card out to anybody," he says. "And in the same way that you should regularly change your credit card access number, you can defeat hackers by regularly changing your Internet password. If you don’t, it’s like leaving the bank vault door wide open."
    When it comes to creating your password, he【B9】______ including a few punctuation marks and numbers rather than【B10】______ letters in the alphabet. [br] 【B2】
选项
答案 criminal
解析 此处需要形容词作定语修饰activi-ties。criminal意为“犯罪的”，注意词尾all。
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