Trojan

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The idea of ​​Trojan goes back to a Greek legend. The Greeks, who were unable to conquer the castle of Troy after a long period of war, sent a large horse into the castle as a gift as a sign of peace. Trojan Castle soldiers happily ate wine and danced from the end of the war until late at night, but unaware that it was full of large horses, from soldiers to armed teeth. Soldiers inside a large wooden horse came out of their wooden horses after the castle calmed down and made sure the people inside the castle were asleep, and opened the gates for the Greek soldiers. This idea is also used in the hacking world, which means sending malicious files into the system in a quiet and harmless format, but the same free file will destroy the system.‌‌