South Korea Police Bust Vietnam-Based Gambling Network That Took $46M in Bets

South Korean police have dismantled an illegal gambling operation run by South Korean nationals from an office in Vietnam. For PSPs and banks, the useful detail is not the drama but the mechanics: the group routed betting activity through more than 200 bank accounts, drew in 3,553 registered players with online advertising, and moved $46 million in wagers since April last year.

1. The site targeted South Korean users and offered baccarat, slot games, and sports betting. According to police, the operation had 3,553 registered players and used internet advertising to acquire traffic.
2. Investigators opened the case in September 2025 after a whistleblower report. To map the money flow, they analyzed transactions across more than 200 bank accounts used by the group.
3. After gathering evidence, South Korean authorities alerted their counterparts in Vietnam. A raid led to the detention of 13 organizers, who were then handed over to South Korean authorities.
4. Police also obtained a court order to freeze $99 thousand in accounts belonging to the group. The case file for the 13 organizers and 105 of the most active players has now been transferred to the prosecution on charges including organizing an illegal gambling business and violating South Korea’s National Sports Promotion Act.
5. One member of the group is still being sought after fleeing abroad. For payment teams, the headline takeaway is familiar: online gambling operations can look distributed and low-profile on the surface, but bank-account clusters and ad-driven player acquisition still tend to leave a trail.