Tether has frozen about $39.3 million in USDT across 10 Tron addresses linked to Xinbi Guarantee, a Chinese-language escrow marketplace that researchers rank among Southeast Asia’s largest illicit crypto hubs. The on-chain tracing firm MistTrack first reported the freeze, which took effect on September 8.
The blocked wallets held 39,273,713 USDT between them, with balances ranging from 1 USDT to roughly 10.8 million. MistTrack, developed by the SlowMist team, said the freeze was enforced through the USDT contract itself, which stops transfers from flagged addresses while leaving every other holder untouched.
What Xinbi Guarantee is
Xinbi Guarantee emerged on Telegram around 2022 as an escrow service for Chinese-speaking vendors. Buyers and sellers used USDT to pay for goods and services, with the platform holding funds until a deal was confirmed. TRM Labs, a blockchain analytics company, has described it as one of the largest illicit marketplaces in the region, with roughly $24.2 billion in cumulative transaction volume, including $12.1 billion in inflows since May 2025.
Researchers connected vendors on the platform to money laundering, sales of stolen personal data, fake identity documents and other cybercrime services across Southeast Asia. Telegram removed the marketplace in May 2025 after industry investigations, but its wallets held funds long after the channel itself went dark.
“Following its freeze of Huione-linked funds, this appears to mark another crackdown on illicit Telegram-based escrow platforms,” MistTrack said in its September 8 report.
A pattern, not a one-off
The action follows earlier freezes involving Huione Guarantee, another Telegram-based escrow service. In July 2024, the issuer blocked more than $28 million in a Tron wallet that the analytics firm Bitrace linked to Huione’s Guarantee business. Operators responded by activating new addresses and moving 114,800 USDC out of an affected wallet. Huione later launched its own stablecoin, USDH, in an effort to escape contract-level freezes.
The replacement dynamics continue. After Huione’s exit in 2025, Tudou Guarantee appeared quickly, and Chinese authorities later took action against it while operators moved to new wallets and channels. Analysts note that freezing individual addresses has real limits against decentralized networks that can spawn new ones.
Tether has also acted on direct government requests. In July, the company froze 131 Tron wallets holding more than 1.4 million USDT after a formal resolution from the US Office of Foreign Assets Control tied the funds to ISIS-K financing networks. Tether’s total frozen USDT now exceeds $4.2 billion, a figure that reflects growing cooperation with law enforcement worldwide.
The control question resurfaces
Every freeze revives the debate about what a dollar-pegged token really is. Tether can seize any USDT at the contract level, which makes the asset useful for sanctions enforcement and recovering stolen funds, and equally uncomfortable for holders who assumed stablecoins behave like cash. Two Thai businessmen have already sued the company over its authority to freeze $42.4 million in USDT, a case that will test the legal basis of contract-level freezes.
The freeze powers sat at the center of a recent Hacken security review, which found that $91.3 billion of USDT on Tron sits behind a contract two signing keys could seize, with no delay or reversal mechanism built in. The Xinbi freeze shows that power being used against suspected criminal infrastructure. The same power, critics argue, could be applied to any address if pressed by governments or courts.
For now, the market reaction has been muted. USDT held its dollar peg and Tron activity continued normally, since the freeze touched 10 addresses out of millions. The blocked funds remain in place pending any legal process, and neither Tether nor Xinbi’s former operators have commented publicly.
What happens to the frozen money
Frozen USDT sits in limbo. Tether can hold flagged balances indefinitely or release them to a verified claimant after legal process. In past cases, some frozen funds ended up returned to hack victims through cooperation with exchanges and police, while others were burned or converted. There is no public timeline for the Xinbi balances, and the former marketplace has no obvious legal representative to contest the freeze. Practically, the money is gone for whoever controlled those wallets, and the freeze costs Tether nothing to maintain.
For traders the more useful takeaway is operational. Large escrow and OTC flows on Tron remain a routine screening target for analytics firms, and freezes tend to land in clusters once one platform is dismantled. Wallets that received funds from Xinbi addresses may face secondary freezing or exchange-level blocks when they try to deposit, so contagion beyond the 10 flagged addresses is possible over the coming weeks.
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