Answer: TROJANHORSE

AnswerCrossword Clue
TROJANHORSELegendary Greek ruse
TROJANHORSEDestructive computer virus
TROJANHORSEGreeks equine creation
TROJANHORSEGift borne by Greeks.
TROJANHORSEEspionage method.
TROJANHORSEMount for Hector
TROJANHORSEDevice for espionage and sabotage
TROJANHORSEAgamemnon's wooden wile
TROJANHORSEWARNING: May contain Greeks
TROJANHORSEFatal Greek gift
TROJANHORSEHistoric but fatal Greek gift