South Korea’s National Police Agency conducted a sweeping crackdown on illegal cyber gambling between November 2025 and June 2026, resulting in 2,319 arrests across 1,746 separate cases. Authorities seized 107.2 billion won in criminal proceeds during the operation — roughly two and a half times the 46.5 billion won confiscated during the equivalent period the previous year.
The National Office of Investigation said the campaign specifically targeted senior-level operators running large-scale gambling platforms that processed bets ranging from hundreds of billions to over 1 trillion won. A significant number of those implicated had either relocated abroad or moved regularly between South Korea and other countries to avoid detection.
Two regional operations illustrate the scale of the enforcement activity. The Gyeongnam Provincial Police Agency arrested 63 individuals, five of whom were running a gambling business in Vietnam valued at 1.31 trillion won, with 38.7 billion won in illicit proceeds seized. Separately, the Jeju Special Self-Governing Provincial Police Agency arrested 17 people, five of whom operated an illegal gambling platform spanning Vietnam and South Korea with a transaction volume of 339.5 billion won. Nine of those 17 suspects were detained and 13.2 billion won was recovered.
Police attributed the sharp rise in seized assets to earlier intervention in the investigation process. Measures included tracing foreign-registered vehicles and deposit claims connected to illegal earnings, with authorities moving to freeze assets before formal indictment rather than waiting until later in proceedings.
International cooperation played a central role in the operation. Seventy-five suspects who had fled to foreign countries were apprehended through coordination with overseas law enforcement agencies. Among them, 15 individuals identified as key operators of gambling sites in the Philippines and Cambodia were extradited to South Korea and subsequently imprisoned.
Investigators also identified a pattern in the technology underpinning several of the illegal platforms. Because multiple gambling sites linked to arrested groups appeared to share similar technical infrastructure, authorities said they plan to expand their focus to companies suspected of developing and supplying the software used to build and run these sites. The investigation has effectively broadened from individual operators to the wider ecosystem supporting illegal gambling networks.
Data gathered during the crackdown also shed light on user demographics. People in their 30s represented the largest share of those involved at 24.7%, followed by those in their 20s at 23.6% and those in their 40s at 22.1%. Younger users aged 20 to 30 were more likely to engage in Sports Toto games, while those aged 50 and above tended toward horse and bicycle racing — indicating that illegal gambling activity spans multiple age groups and product types.
Looking ahead, police said the second half of 2026 will see continued extradition efforts targeting gambling site operators who remain abroad, with that work to be carried out through the Transnational Crime Special Response Task Force.
South Korea maintains a tightly restricted legal gambling framework for its residents, with most forms of gambling prohibited domestically. The country has periodically intensified enforcement against illegal online gambling, which authorities say has grown substantially in scale and technical sophistication in recent years, increasingly relying on operators based in Southeast Asia to evade domestic jurisdiction.
