On Thursday, Tether, the company behind the world's most widely used stablecoin, announced that it had frozen approximately $344 million in USDT tokens hosted on two wallets within the Tron blockchain. The decision was made in response to requests from US authorities, who had identified the addresses as potentially linked to illicit activities.
As a result, the movement of these funds has been halted. Although the nature of the alleged illicit activity and the identities of the wallet owners were not disclosed by Tether, blockchain analytics firm AMLbot discovered that the addresses in question appeared in documents and posts related to scams.
This move is particularly significant given the ongoing debate surrounding the role of stablecoin issuers in preventing the transfer of funds tied to illegal activities. The Financial Action Task Force (FATF) recently 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.
The issue gained prominence earlier this month following the $285 million exploit of Drift Protocol, in which attackers transferred hundreds of millions of USDC stablecoins and bridged funds across multiple chains. Critics argued that Circle, the issuer of USDC, could have acted more swiftly to freeze the assets and mitigate losses, while the company maintained that it only takes such actions when legally required or at the request of law enforcement and regulatory 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.
Furthermore, the company is expanding its presence in the US market. It has launched the USAT token, which complies with federal stablecoin regulations, in partnership with federally regulated crypto bank Anchorage Digital.
The effort is being led by former White House crypto advisor Bo Hines. Tether is also preparing for its first comprehensive audit of reserves, a long-promised step aimed at enhancing transparency and aligning more closely with regulatory expectations for stablecoins. UPDATE (April 23, 15:30 UTC): Additional context regarding Tether's US expansion has been added.