
South Korean authorities have taken significant legal action against a sophisticated cybercrime organization accused of sexually exploiting hundreds of individuals, including a large number of minors, through the encrypted messaging app Telegram. In January 2025, the Seoul Metropolitan Police Agency announced they had dismantled a vast digital sex crime ring that had been active since 2020. The operation led to the arrest of 14 alleged members.
The investigation revealed that the network had victimized over 234 people, of whom 159 were minors. The perpetrators allegedly used encrypted chat rooms to distribute exploitative material and blackmail their victims. The scale of the operation has positioned it as one of the country's most significant digital sex crime cases in recent years, drawing national attention to the ongoing challenges of policing anonymous online platforms.
Subsequent legal proceedings against the alleged mastermind, identified as 33-year-old Kim Nok-wan, and ten of his accomplices began in April 2025. Prosecutors from the Seoul Central District have charged Kim with organizing a criminal group known as “Vigilante.” The charges include the sexual assault of children and adolescents and the production and distribution of sexually exploitative content. Among the accomplices indicted are several high school students, highlighting the young age of some individuals involved in the criminal network.
This case is a high-profile example within a broader context of digital offenses that have plagued South Korea. The country's authorities have intensified their efforts against such activities, which includes a rise in so-called “voice phishing” scams and other forms of online blackmail. This incident underscores the government's commitment to pursuing a part of a wider crackdown on digital crimes through enhanced investigations and stricter penalties to protect citizens, particularly the most vulnerable, from online exploitation.



