Tether freezes $39.3M USDT as Xinbi escrow crackdown widens

Blockchain analytics firm MistTrack reports that Tether has frozen approximately $39.3 million in USDT held across 10 TRON addresses attributed to Xinbi Guarantee, a Chinese-language Telegram escrow marketplace.

MistTrack identified the addresses on September 8 through wallet labels, transaction patterns and connections to addresses associated with Xinbi's network, the firm said in a post on X. One address, TWPma8xH48AEN93x2krdukV9e1j6sPsBeS, held more than $10 million in USDT.

The freeze follows Tether's earlier restriction of Huione-linked funds and extends the issuer's enforcement to another guarantee marketplace removed from Telegram in May 2025. Elliptic estimated that Huione Guarantee processed more than $27 billion in transactions before its removal, while TRM Labs calculated that guarantee marketplaces shut down during Telegram's crackdown had handled more than $35 billion in USDT-denominated activity. Those estimates cover overall marketplace volume and do not establish that all transactions were illicit.

Tether has not publicly confirmed the restrictions or disclosed the legal basis for the reported action. The stablecoin issuer's USDT infrastructure allows it to restrict transfers from specific blockchain addresses, freezing the tokens held there while leaving transaction history visible on-chain. When an address is frozen, the USDT cannot be freely transferred, although the wallet's transaction history remains visible on the blockchain.

The reported Xinbi restrictions differ from cases where Tether has announced freezes following sanctions designations or law-enforcement actions. In July, Tether froze 131 TRON wallets after the U.S. Treasury's Office of Foreign Assets Control added those addresses to its ISIS-K designation, affecting more than $1.4 million in USDT. Those cases raised questions about the role of centralized stablecoin issuers in restricting funds after sanctions designations, law-enforcement requests or other compliance investigations.

Xinbi's network and the limits of wallet-level enforcement

Xinbi Guarantee operated through escrow-style arrangements, with the marketplace acting as intermediary between buyers and sellers. The wider guarantee ecosystem has drawn scrutiny from blockchain investigators over alleged links to cryptocurrency scams and money laundering.

Wallet-level restrictions do not necessarily dismantle the broader network. After Telegram removed Huione Guarantee, another marketplace called Tudou Guarantee emerged, and Chinese authorities later took action against it. Users and operators associated with similar services have continued to shift between platforms and wallet infrastructure, making it difficult to determine whether the frozen funds relate to Xinbi's previous operations, activity that continued after the Telegram removal, or successor services.

For custodians and compliance teams, the freeze raises practical questions about monitoring issuer interventions. The exact reasons behind the Xinbi restrictions remain unconfirmed, and the full details of affected addresses and transactions have not been independently verified. The main available evidence is MistTrack's attribution of the 10 TRON addresses and its report that the USDT held there has been frozen.

The action also highlights the growing role of centralized stablecoin issuers in enforcing compliance beyond primary sanctions targets. Tether's extension of restrictions to secondary-market addresses linked to guarantee marketplaces suggests the issuer is actively monitoring on-chain activity associated with these networks, even after the platforms themselves have been removed from Telegram. Whether the restrictions form part of a wider compliance or law-enforcement investigation remains unclear until Tether provides further information.

This article is for informational purposes only and does not constitute investment advice.