A thing or situation which appears to be good when it is received or experienced but is found to be bad.
a subversive group that supports the enemy and engages in espionage or sabotage; an enemy in your midst
a large hollow wooden figure of a horse (filled with Greek soldiers) left by the Greeks outside Troy during the Trojan War
a program that appears desirable but actually contains something harmful; "the contents of a trojan can be a virus or a worm"; "when he downloaded the free game it turned out to be a trojan horse"
a program that appears desirable but actually contains something harmful
