What is a Trojan?
A Trojan or Trojan horse is a software application that pretends to provide legitimate functionality, but actually carries out malicious functions, exploiting the legitimate authority of the person who starts up the program. It can be used as an attack tool to capture sensitive information such as user accounts and passwords. Unlike a virus, a Trojan does not replicate itself. It spreads usually by enticing the user to install software such as “shareware” which is embedded with a Trojan horse.
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