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Trojan horse

noun

Simple Definition of Trojan horse

  • : someone or something that is used to hide what is true or real in order to trick or harm an enemy

  • computers : a seemingly useful computer program that is actually designed to harm your computer (such as by destroying data files) if you use it

Source: Merriam-Webster's Learner's Dictionary

Full Definition of Trojan horse

  1. 1 :  someone or something intended to defeat or subvert from within usually by deceptive means

  2. 2 :  a seemingly useful computer program that contains concealed instructions which when activated perform an illicit or malicious action (as destroying data files); also :  the concealed instructions of such a program — compare virus

Examples of trojan horse in a sentence

  1. They may be using the other corporation as a Trojan horse.



Origin of trojan horse

from the large hollow wooden horse filled with Greek soldiers and introduced within the walls of Troy by a stratagem


First Known Use: 1837



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