17 types of Trojans and how to defend against them

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Computer Trojans received their name from the infamous mythological horse. The Trojan’s basic mission is to mislead people of its real goal. A Trojan is malicious software that usually needs to be launched by the user or another malicious program.

Malicious code typically penetrates the system under the guise of a useful utility or tool. However, the main task of such software is to perform one or more of these malicious actions:

  • Delete user or system data
  • Change user or system data
  • Encrypt user or system data
  • Copy user or system data
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