Trojan horse


Trojan horse

noun

: 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

Full Definition of TROJAN HORSE

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

  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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