The hacker is an anonymous individual mentioned in the narrative as the source of the leaked video that shows the infection experiment. According to rumor, the hacker obtained the video by breaking into a research institute's system and released it online, causing widespread panic. The video went viral and forced the public to confront the reality of the infection. The hacker's action is credited with breaking the story to the world, but his identity remains unknown. He is part of the backstory but does not appear in person.
