Twenty Hacker

In 2017, Jae Min's (Viini) life is shattered when hackers devastate his father's company using ransomware. Determined to seek revenge, he develops exceptional "white hat" hacking skills. At university, he catches the attention of Cho Hye Soo (Cho Hyun Young), leader of Better World, a clandestine group of ethical hackers. When a dangerous hacking group called Youknowwhat targets the Songdo International Exchange cryptocurrency platform, Jae Min becomes involved. His childhood friend Joo Hee (Lim Na Young) is also caught in the crossfire, with her father potentially trapped in a cryptocurrency scam. As Youknowwhat escalates its cyber attacks, Jae Min must use his skills to protect those he cares about and stop the criminal hackers. This is a 2021 South Korean thriller movie directed by Han Hyun Seok.