What is a Trojan horse in cybersecurity?
- A.A hardware device used for hacking
- B.An encryption algorithm with a known backdoor
- C.Malware that replicates itself across networks, since a trojan replicates itself across the network without any user action
- D.Malware disguised as legitimate software to trick users into installing it
Why D is correct
A Trojan horse (or simply Trojan) is malware that disguises itself as legitimate or desirable software. When the user installs or runs it, the Trojan performs malicious actions like stealing data, creating backdoors, or downloading additional malware. Unlike viruses and worms, Trojans do not self-replicate.
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