The Trojan Horse is a tale frae the Trojan War aboot the subterfuge that the Greeks uised tae enter the ceety o Troy an win the war. In the canonical version, efter a fruitless 10-year siege, the Greeks constructit a huge widen horse, an hid a select force o men inside. The Greeks pretendit tae sail away, an the Trojans pulled the horse intae thair ceety as a victory trophy. That nicht the Greek force crept oot o the horse an opened the gates for the rest o the Greek airmy, which haed sailed back unner cover o nicht. The Greeks entered an destroyed the ceety o Troy, endin the war.
Metaphorically a "Trojan Horse" haes come tae mean ony trick or stratagem that causes a target tae invite a foe intae a securely pertectit bastion or place. A malicious computer program which tricks users intae willinly runnin it is an aa cried a "Trojan horse".
The main auncient soorce for the story is the Aeneid o Virgil, a Laitin epic poem frae the time o Augustus. The event is an aa referred tae in Homer's Odyssey. In the Greek tradeetion, the horse is cried the "Widen Horse" (Δούρειος Ἵππος, Doúreios Híppos, in the Homeric Ionic dialect).