A Trojan (or Trojan horse) is a type of malicious software (malware) that disguises itself as a legitimate or benign program to deceive users into downloading, installing, or executing it. Unlike viruses and worms, Trojans do not replicate themselves; they rely on tricking users or administrators into unknowingly introducing them into a system. Once activated, Trojans can perform a wide range of harmful activities without the user’s knowledge, such as stealing sensitive information, spying on user activity, or opening backdoors for further attacks. Learn more: https://en.wikipedia.org/wiki/Trojans