题目内容
_______ are programs that migrate through networks and operating systems and attach themselves to various other programs and databases.
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A(n) _______ attempts to slow down or stop a computer system or network by sending repetitive requests for information.
A deceptive act, using the Internet, to trick people into spending their money and time for no gain is called an Internet _______.
_______ attempts to trick Internet users into thinking a fake but official-looking website or e-mail is legitimate.
Computers infected by a virus, worm, or Trojan horse that allows them to be remotely controlled for malicious purposes are called _______.
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