Seoul Crypto Cash-Out Ring: 23 Arrested for Laundering $11M via USDT and Cambodian Phishing
South Korean police have dealt a serious blow to an international money laundering network, arresting 23 suspects in Seoul. Two key figures have already been taken into custody. This operation sheds light on how stablecoins, particularly USDT, are becoming an ideal tool for criminal syndicates to launder proceeds from phishing and investment scams.
According to investigation materials, the criminal group operated according to a clear scheme, linking South Korean and foreign crypto exchanges. The main flow of funds came from a Cambodian phishing organization. Analysis revealed three main areas of illegal activity.
Money Laundering Scheme: From USDT to Cash in KRW
The first group, consisting of nine people led by a certain "Suspect A," from February 2024 to April 2026, following the instructions of ringleader "Y" based in Cambodia, received Tether (USDT) worth approximately $9.2 million on foreign exchanges. These stablecoins were then exchanged and transferred, after which the suspects disbursed the funds in foreign currency or South Korean won (KRW).
The second, more active group of 14 people, including "Suspect A" and "J," conducted a massive 24,500 illegal exchange operations over the same period. The total amount of these transactions was approximately $11.1 million. Analysis of about 11,300 related accounts revealed losses from 265 incidents of phishing and investment fraud totaling around $17 million. Only about $430,000 was recovered from the suspects.
Separate Network of "Money Changers" and International Manhunt for Ringleader
In addition to the main group, another 33 people were detained on similar charges. They illegally provided currency exchange services for tourists and acquaintances using USDT. According to the investigation, this network exchanged about $4.1 million, bypassing official channels and concealing the origin of the funds.
The ringleader of the organization remains at large. An international manhunt has been launched through Interpol with a "red notice." This case is a vivid illustration of how cryptocurrencies, intended to ensure financial freedom, are used for the dirtiest schemes.
My Expert Commentary: This case is not just a local story, but a global trend. We see how professional criminals are adapting to the realities of DeFi, using stablecoins to bypass traditional banking barriers. For regulators, this is a wake-up call: without unified KYC/AML standards and inter-exchange cooperation, such schemes will multiply, undermining trust in the legitimate crypto market.