The Role of Stablecoins in Modern Financial Crimes: A Focus on Tether

Lionel Iruk, Esq
4 min readFeb 10, 2025

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Stablecoins have been an integral part of the structure that makes up cryptocurrency, mostly offering a kind of digital asset whose value stays stable, pegged to more conventional currencies like the US dollar. Among such is Tether, or USDT, the most popular among them all, facilitating several billion dollars worth of transactions every day. While stablecoins introduce liquidity, efficiency, and a bit less volatility to crypto markets, growing adoption has simultaneously raised concerns over the role these assets might play in financial crimes. From money laundering to sanctions evasion, in particular, the world’s biggest stablecoin Tether has attracted the gaze of regulators and police globally.

Dominance and Market Influence of Tether

As of 2024, Tether, or USDT, is the largest stablecoin, with a market capitalization of more than $138 billion. It is widely utilized for trading on both centralized and decentralized exchanges to act as a bridge between fiat currencies and cryptocurrencies.
Reasons that point to the dominance of Tether in the market include:

  • Liquidity & Accessibility: The availability of USDT on nearly every crypto exchange makes it the go-to choice for traders.
  • Stability & Efficiency: As opposed to highly volatile cryptocurrencies, such as Bitcoin or Ethereum, for example, the stable value of Tether allows for quick transactions without exposing oneself to possible price changes.
  • DeFi Integration: USDT is used very much in the DeFi ecosystem for lending, borrowing, and yield farming.

While these benefits helped in the mass adoption of Tether, they also made it an attractive tool for bad actors to exploit liquidity and anonymity.

The Role of Tether in Financial Crimes

Whereas the major use of Tether is for legitimate purposes, its pseudonymous nature, together with high liquidity and bypassing traditional systems, has set it as one of the most favorite virtual currencies that link many nefarious activities. Areas of its misuse, seen as worrying, include the following:

1. Money Laundering and Illicit Fund Transfers
- Tether is used to disguise illicit money, thus remaining the favorite among all active cybercriminals, ransomware operators, and fraudsters.
- There have been reports that billions of dollars in illicit funds have flowed through Tether in recent years, with criminals using USDT to move funds across borders undetected.
- Since Tether transactions are made over blockchains such as Ethereum and Tron, mixing services and DEXs allow users to swap illicitly obtained funds with little oversight.

2. Sanctions Evasion and Terrorist Financing
- Tether has been implicated in various cases of sanctions evasion, especially in countries like Russia, North Korea, and Iran.
- The Lazarus Group, a North Korean state-sponsored hacking group, has used Tether to launder stolen crypto assets from cyberattacks.
- US regulators, including the Treasury’s Office of Foreign Assets Control (OFAC), have flagged several Tether-linked addresses as being involved in prohibited transactions.

3. Darknet Transactions and Cybercrime
- Darknet markets have increasingly adopted Tether as one of the go-to virtual currencies for conducting illegal activities such as drug trafficking, arms sales, and identity fraud.
- Because it is easy to convert Tether into Bitcoin or other cryptocurrencies, the criminals utilize this as a temporal store of value until cashing out via unregulated exchanges.

4. Fraud and Market Manipulation
- Tether has faced criticism over claims of unbacked issuance and market manipulation. Critics say that Tether is used to artificially inflate Bitcoin prices by pumping large amounts of USDT into the market without full dollar reserves.
- In 2021, Tether settled with the New York Attorney General and agreed to pay an $18.5 million fine over misleading claims about its reserves.
- While Tether says it is fully backed, the regulatory authorities doubted its financial transparency.

Response of Regulation and Legal Actions Against Tether

Due to systemic risks and improper use of stablecoins including Tether for improper activities, including financial crimes, the regulatory agencies from different parts of the world are increasing their heat on Tether.

US Government Action
- The Department of Justice and Commodity Futures Trading Commission have started investigating the way Tether deals with its finances.
- Lawmakers are calling for greater AML and KYC requirements on the providers of stablecoins.
- In 2022, U.S. Treasury Secretary Janet Yellen called for urgent stablecoin regulation, citing financial stability concerns.

European and International Regulation
- The EU introduced the Markets in Crypto-Assets Regulation, MiCA, which imposed licensing requirements on stablecoin providers such as Tether.
- The FATF has called for increased monitoring of stablecoin transactions as a way to prevent financial crimes.
- In China, the use of stablecoins for transactions has been banned outright as part of broader curbs on crypto activity.

Response of the Industry: How Tether Is Addressing Concerns

Increasingly under regulatory pressure, Tether has tried to increase its level of compliance to prevent illicit financial activity:
1. Improved Blockchain Monitoring
Tether collaborates with Chainalysis and TRM Labs among others in following the trail of illicit transactions.
More than 1,000 USDT wallets have been blacklisted from use by criminals.
2. Establishment of the Tether Crime Unit: T3 Financial Crime Unit
In 2024, Tether launched the T3 Financial Crime Unit with TRON and TRM Labs, which is used to trace and freeze suspicious transactions.
3. Transparency
Tether has released several independent audits to check its reserves and also gain confidence in their backed issuance.

Stablecoins like Tether have become indispensable to the modern cryptocurrency ecosystem, offering unparalleled liquidity and financial stability. However, their misuse in money laundering, sanctions evasion, and fraud has drawn global regulatory scrutiny. While Tether has made efforts to enhance transparency and compliance, challenges remain in striking a balance between financial innovation and crime prevention.

The development of policies by regulators, especially those pertaining to stablecoins, will continue. Proactive compliance by the industry is crucial to let the market for these instruments flourish while preventing illicit uses. The coming years will tell whether a stablecoin like Tether can exist within a well-regulated financial system or needs much stricter government intervention.

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Lionel Iruk, Esq
Lionel Iruk, Esq

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