A computer program run or downloaded to perform a legitimate function, that also contains hidden instructions for an unauthorized, disruptive operation
(Noun)
Synonyms:
  1. decoy
  2. trojan
  3. fifth-column
  4. subversive device
A large hollow wooden figure of a horse (filled with Greek soldiers) left by the Greeks outside Troy during the Trojan War
(Noun)
Synonyms:
  1. wooden horse