home/glossary/Trojan horse

Trojan horse

nouncandidate·updated May 9, 2026

A computer program that appears to have a useful function, but also has a hidden and potentially malicious function that evades security mechanisms, sometimes by exploiting legitimate authorizations of a system entity that invokes the program.

MWE

Classifications

Entity Type

Threat90%rule-basedr:entity.threat.attack.v1
?unassignedlast reviewed

Sensitivity

unclassified

Information Class

unclassified

Variants

plural
Trojan horses
possessive
Trojan horse's
pluralpossessive
Trojan horses'