On Thursday, Tether, the company behind the world's largest stablecoin, announced that it has frozen approximately $344 million worth of USDT tokens across two wallets on the Tron blockchain, following requests from US authorities. This move was made after the addresses in question were flagged for suspected links to illicit activities, thereby preventing any further movement of these funds. The nature of the activities and the identities of those controlling the wallets were not disclosed by the company. However, according to AMLbot, a blockchain analytics firm, these addresses appeared in documents and posts related to scams.

This development comes at a time when the role of stablecoin issuers in preventing the transfer of funds linked to illegal activities is under scrutiny. Recently, the Financial Action Task Force cautioned that stablecoins are increasingly being utilized for illicit transactions, including the evasion of sanctions and money laundering. Public blockchains enable the tracing of transactions, while issuers have the ability to freeze assets under specific conditions.

This issue gained attention earlier this month after the $285 million exploit of Drift Protocol, where attackers transferred hundreds of millions of USDC stablecoins and bridged funds across chains. Critics argued that Circle, the issuer of USDC, could have acted more swiftly to freeze assets and minimize losses, while the company stated that it only takes such actions when legally required or at the request of law enforcement and authorities. Tether stated that it collaborates with law enforcement agencies when wallets are linked to sanctions evasion or criminal networks and has supported over 2,300 cases globally across 340 agencies in 65 countries. The company is also expanding its presence in the US market with the launch of the USAT token, which complies with federal stablecoin regulations and was issued in partnership with Anchorage Digital, a federally regulated crypto bank, under the leadership of former White House crypto advisor Bo Hines.

Furthermore, Tether is preparing for a comprehensive audit of its reserves for the first time, a long-promised step aimed at enhancing transparency and aligning more closely with regulatory expectations for stablecoins.