Two Russians caught in $42M USDT cross-border transfer case in South Korea
Two Russian nationals have been referred to prosecutors in South Korea for allegedly facilitating the illegal transfer of roughly 58 billion won ($42.2 million) to Russia using USDT, a U.S. dollar-pegged stablecoin. According to a report by KBS News, the Seoul branch of the Korea Customs Service (KCS) announced the charges on May 22, citing violations of the country’s Foreign Exchange Transaction Act. The suspects, a man and a woman both in their 40s, reportedly operated an unauthorized money exchange business to carry out the transactions.
Over 6K transactions
Authorities suspect the pair of repeatedly using USDT to conduct cross-border transfers between South Korea and Russia. From January 2023 to July 2023, the duo allegedly completed 6,156 illegal remittance transactions, either sending funds abroad or receiving payments on behalf of others, totaling the full 58 billion won in question.
Investigators revealed that the two suspects, who hold permanent residency in South Korea and have overseas Korean status, used the messaging app Telegram to solicit clients. When transferring money to Russia, they reportedly collected funds via kiosks in convenience stores that allow users to send money without a bank account. The collected cash was then used to purchase USDT to complete the remittances.
According to customs officials, the suspects would either send the cryptocurrency directly to a crypto wallet specified by the customer, or forward it to accomplices in Russia. These accomplices would then convert the crypto to cash and distribute rubles to recipients through local channels.
Illicit crypto use by businesses
The operation also handled export payments for South Korean businesses. The suspects reportedly accepted payments from Russian importers on behalf of Korean used car dealers and cosmetics exporters. In these cases, associates in Russia would collect ruble payments from importers, convert the funds into USDT and send the cryptocurrency to contacts in Korea. The funds were then exchanged for Korean won and deposited into the accounts of the businesses.
Customs officials believe that the group’s services became particularly appealing after the start of the Russia-Ukraine war in 2022. In the wake of U.S. and international sanctions against Russia, legitimate financial channels for cross-border transactions became restricted, prompting some companies and individuals to turn to illegal alternatives. The Korean export companies involved in these transactions have been fined.
The Seoul Customs Office emphasized that illegal money exchange operations are often exploited for criminal activities such as drug trafficking, voice phishing and gambling. In response, the agency committed to stronger enforcement and pledged to spare no effort in combating unlawful financial operations.
Scams grow inside the border
The surge in crypto-related financial crimes in South Korea extends beyond cross-border transactions. According to a recent report by Maeil Business Newspaper, Kakao Pay—a local mobile payment platform—has detected around 70,000 cases of malicious apps linked to virtual assets over the past month. Of those, 80% were associated with Ponzi schemes, where fraudsters lure victims with promises of high returns before disappearing with the funds. A Kakao Pay spokesperson noted that new forms of security threats are emerging alongside the rapid growth of the crypto market, adding that the company is prioritizing the development of stronger security systems.
