This page is for information purposes only. Certain services and features may not be available in your jurisdiction.

Following Investigations by Tether, the U.S. Department of Justice and us, Tether Voluntarily Freezes 225M in Stolen USDT Linked to International Crime Syndicate

We and Tether, the largest company in the cryptocurrency ecosystem, today announced that we have collaborated with the United States Department of Justice (DOJ) in an investigation that led to Tether proactively and voluntarily freezing approximately 225 million in USDT tokens in external self-custodied wallets linked to an international human trafficking syndicate in Southeast Asia responsible for a global “pig butchering” romance scam.

The joint investigation was conducted using tools from blockchain analysis firm Chainalysis, and the action by Tether represents the largest-ever freeze of USDT in history.

During our months-long investigative effort with Tether, the U.S. law enforcement agencies, including the DOJ, were proactively alerted to the location of the illicit funds by analyzing the flow of those funds through the blockchain. These actions prompted the initiation of a freeze request by the United States Secret Service and a voluntary freeze by Tether. The frozen wallets are on the secondary market and are not associated with Tether’s customers. To the extent lawful wallets were captured by this operation, Tether will work quickly with law enforcement and the owners of those wallets to unfreeze them, as appropriate.

The proactive measures by the two firms is an example of how cryptocurrency industry players can work together with global law enforcement agencies to effectively deter criminal use. The transparency of blockchain transactions serves as a powerful deterrent to illicit activities, setting a significant precedent for the industry.

In a dedicated effort to maintain industry integrity, Tether follows stringent Know Your Customer (KYC) and Anti-Money Laundering (AML) protocols, in line with the Bank Secrecy Act and the best practices of financial institutions. Additionally, Tether's compliance team conducts thorough enhanced due diligence screenings for all applicants, cross-referencing them against the sanctions databases of the U.S. Department of the Treasury's Office of Foreign Assets Control (OFAC). This measure allows Tether to avoid engaging with sanctioned individuals, entities, or deposit addresses. Further, Tether collaborates with global law enforcement in the furtherance of the prevention of unlawful actions through the investigation of suspicious transactions on the secondary market.

Tether remains committed to expeditiously collaborating with law enforcement and affected wallet owners to swiftly resolve concerns regarding lawful wallets captured by these freezes.

Disclaimer
This content is provided for informational purposes only and may cover products that are not available in your region. It is not intended to provide (i) investment advice or an investment recommendation; (ii) an offer or solicitation to buy, sell, or hold crypto/digital assets, or (iii) financial, accounting, legal, or tax advice. Crypto/digital asset holdings, including stablecoins, involve a high degree of risk and can fluctuate greatly. You should carefully consider whether trading or holding crypto/digital assets is suitable for you in light of your financial condition. Please consult your legal/tax/investment professional for questions about your specific circumstances. Information (including market data and statistical information, if any) appearing in this post is for general information purposes only. While all reasonable care has been taken in preparing this data and graphs, no responsibility or liability is accepted for any errors of fact or omission expressed herein.

© 2025 OKX. This article may be reproduced or distributed in its entirety, or excerpts of 100 words or less of this article may be used, provided such use is non-commercial. Any reproduction or distribution of the entire article must also prominently state: “This article is © 2025 OKX and is used with permission.” Permitted excerpts must cite to the name of the article and include attribution, for example “Article Name, [author name if applicable], © 2025 OKX.” Some content may be generated or assisted by artificial intelligence (AI) tools. No derivative works or other uses of this article are permitted.

Related articles

View more
how to buy crypto guide
OKX
Introduction to cryptocurrencies

Best Ethereum Wallets (2024): Top Picks, Security Tips & How To Choose

The explosion of digital assets has made finding the best Ethereum wallets a top priority for millions of users. With countless wallet options—each promising security and convenience—choosing the righ
Nov 1, 2025
how to buy crypto guide
OKX
Introduction to cryptocurrencies

Ethereum Validator: Step-by-Step Guide

Ethereum validators now play a crucial role in securing billions of dollars on the network—every day, over 900,000 validators earn rewards for keeping Ethereum safe and decentralized. But what exactly
Nov 1, 2025
how to buy crypto guide
OKX
Introduction to cryptocurrencies

Ethereum 2.0 Release Date & The Merge Explained: Timelines, Upgrades, and Future

Ethereum 2.0, also known as "the Merge," was officially completed on September 15, 2022, marking one of the largest upgrades in blockchain history. If you've searched for the "ethereum 2.0 release dat
Nov 1, 2025
how to buy crypto guide
OKX
Introduction to cryptocurrencies

Benefits of Ethereum 2.0: Complete Guide to Upgrades, Staking & Security

Ethereum 2.0 is the most anticipated upgrade in crypto—promising faster transactions, eco-friendly tech, and new rewards for ETH holders. The benefits of Ethereum 2.0 are set to transform not only how
Nov 1, 2025
how to buy crypto guide
OKX
Introduction to cryptocurrencies

Is Ethereum a Good Investment?

Is Ethereum a good investment? As the world's most widely-used smart contract platform, Ethereum powers billions of dollars in decentralized finance and NFT activity. Ethereum investment has delivered
Nov 1, 2025
how to buy crypto guide
OKX
Introduction to cryptocurrencies

Bitcoin vs Ethereum: Complete Blockchain Technology Comparison

Did you know Bitcoin and Ethereum account for more than 60% of the entire crypto market capitalization? The debate over bitcoin vs ethereum continues shaping headlines and portfolios—these two cryptoc
Nov 1, 2025
View more