South Korean authorities have repatriated the alleged ringleader behind a major online gambling syndicate that operated for four years and handled illicit wagering worth KRW590bn, as reported by Maeil Business Newspaper.
The Seoul Metropolitan Police Agency’s cyber investigation unit confirmed that the suspect, identified only as Mr A, was extradited from Thailand and handed over to prosecutors on February 6. He is accused of running seven illegal Sports Toto and casino platforms between October 2019 and October 2023, recruiting roughly 15,000 members and funnelling funds through 110 bank accounts.
Police said the syndicate aggressively expanded its user base by purchasing databases from other gambling sites or stock “reading rooms,” then cold-calling or sending bulk text messages to potential recruits. Members were reportedly managed through an organised system that included distributing mobile coupons to stimulate continued betting activity.
To evade detection, the group allegedly stored gambling proceeds in cash-filled safes, avoided unnecessary financial transactions and relied on alumni networks and acquaintances for recruitment. Investigators found that the operation frequently moved offices and conducted most communication via Telegram to avoid police monitoring.
Authorities launched the investigation after receiving intelligence in March 2023. By analysing deposit accounts linked to gambling transactions, police identified domestic offices and arrested nine accomplices in October that year, recovering KRW2.657bn in illicit funds. The probe later widened, resulting in the arrest of 43 operators and gambling actors.
Mr A fled overseas during the investigation, but was eventually located in Thailand through cooperation with Interpol. He was detained by Thai police in December 2024 for illegal stay violations, then extradited to South Korea on January 30.
A police spokesperson said authorities will continue strengthening intelligence-gathering efforts and actively pursue overseas fugitives involved in cyber gambling networks.
Police retrieved KRW2.657bn in criminal proceeds during the investigation
