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Trojan-Horse programs

  • A.are legitimate programs that allow unauthorized access
  • B.do not usually work
  • C.are hidden programs that do not show up on the system
  • D.usually are immediately discovered

Answer: A

Correct answer: are legitimate programs that allow unauthorized access

A Trojan horse works precisely because it appears to be a legitimate, useful program: the user installs and runs it willingly, and while it does whatever it advertises it also opens a way in for the attacker. Unlike a virus it does not replicate; its whole method is the disguise.

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