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
MiCA License
Regulation

Our MiCA License and Scaling OKX in Europe

Written by Erald Ghoos, Europe CEO, OKX I have some incredible news for OKX — we’re the first global exchange to secure a MiCA (Markets in Crypto-Assets Regulation) license! This means that we’re set to roll out regulated products and services, such as our OKX Exchange and the rest of our core services to over 400 million people across Europe, through our European Economic Area (EEA) hub in Malta. The announcement is a major milestone for OKX, a win for crypto in Europe, and a testament to the growth and mass adoption of the industry at scale.
Jul 4, 2025
82
We Are Live In France
OKX

Bringing OKX to France: A New Chapter in Our European Journey

By Erald Ghoos, CEO of OKX Europe I'm excited to share another major milestone in our European journey at OKX: we've officially launched our fully regulated centralized crypto exchange in France, made possible through MiCA passporting from our European HQ in Malta. This isn't just another market entry, it’s another strategic step forward in our mission to build a compliant, transparent, and user-focused platform across Europe.
Jul 2, 2025
21
ISO 27001 OKX
Industry news

We're Now ISO/IEC 27001 Certified: Setting the Standard for Security Management

We're proud to announce that we've achieved ISO/IEC 27001:2022 certification, the world's leading standard for information security management systems. This achievement reinforces our position as a global leader in digital asset security, confirming that our robust security framework not only meets but exceeds the most rigorous international standards for protecting customer information.
Jul 1, 2025
70
We are Live in Europe
OKX

OKX launches in Spain

Written by Erald Ghoos, CEO for OKX Europe Today marks another exciting milestone for us at OKX, and for the entire crypto community in Spain. We’ve officially launched our fully regulated centralised crypto exchange in the Spanish market, now available through MiCA passporting from our HQ in Malta.
Jun 27, 2025
Beginners
40
Celebrating our European Expansion
OKX

We’ve Officially Landed in Germany and Poland!

Written by Erald Ghoos, CEO for OKX Europe Today’s a big day for us at OKX—and for crypto users across Europe. We’ve officially launched our fully regulated centralized crypto exchanges in Germany and Poland!
Jun 18, 2025
80
OKX Pay Thumbnail
OKX

OKX Pay for the next crypto generation

A message from OKX CEO Star Xu Today we're rolling out a new product for more than a hundred million people who use our app globally. We're excited to introduce version one of OKX Pay, what we believe is a first-of-its-kind crypto payment app. This sub-app will be available within our OKX app, starting with customers in select markets, with a full roll out planned over the next few months.
Jun 16, 2025
558
View more