Trojan horse noun 4Trojan-horse verb 3forms 6 noun4 •A malicious program that is disguised as legitimate software. •A seemingly favorable offer designed to trick customers into making exorbitant payments. •A person, organization, social movement, piece of legislation, or ideology with a negative agenda or evil intentions under the guise of positive values or good intentions.Russia thinks of an atomic authority as a Trojan horse to get behind the iron curtain and impair her defense, and there is some reason historically for this view. — 1946 •(figurative) A subversive person or device placed within the ranks of the enemy. Trojan-horse verb3 •To introduce slyly, to sneak in, to subvert.They have successfully Trojan-horsed into your heart and mind, and that is exactly where they want to be so they can control you most effectively. — 2019 •To install a Trojan horse on (a system). •To install a Trojan horse on the system of (a person or organization).A world writable file or two later, and a customer has been trojan-horsed. — 1992 formsTrojan horsed · Trojan-horsed · Trojan horsing · Trojan-horsing · Trojan-horses · Trojan horses