
THREAT‑WATCH
Glossary
Trojan
Malware disguised as legitimate software to trick a user into installing it.
Unlike a virus, a trojan doesn't self-replicate; it relies entirely on deception, often bundled with pirated software, fake updates, or email attachments disguised as invoices or documents. Once installed, a trojan commonly opens a backdoor for remote access, steals credentials, or downloads additional malware, all while appearing to function as the legitimate program it impersonated.