Tether freeze activity reached more than $514 million in USDT across Ethereum and Tron in the past 30 days, according to BlockSec’s USDT Freeze Tracker. The data shows rising enforcement by the stablecoin issuer across major blockchain networks.
As of Friday, BlockSec’s tracker shows 370 blacklisted addresses during the period. The total included 328 addresses on Tron and 42 addresses on Ethereum.
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Tron Accounts for Most Tether Freeze Activity
The largest amount was frozen on Tron. BlockSec data showed about $505.9 million in USDT locked on that network. Ethereum accounted for nearly $8.73 million in frozen USDT.
The figures show that most of the enforcement measures have been against Tron. It also shows that Tether regularly freezes wallets considered high-risk or linked to investigations.
Tether freeze of funds is made possible by the ability to block the movement of USDT from an address that has been listed for any fraudulent act. These include scams, law enforcement measures, sanctions, and fraudulent activities.
These enforcement trends have been on the rise in the past year. According to BlockSec’s report for 2025, 4,163 addresses were blacklisted by Tether on Ethereum and Tron.
This has led to the freezing of about $1.26 billion worth of USDT from these addresses. If the current trend continues, there is an indication that frozen assets will surpass the previous amount within 2026.
Frozen USDT Often Burned After Tether Blacklisting
According to the report, more than 50% of the frozen assets have been burned using the contract’s “destroyBlackFunds” function. Less than 3.6% of the addresses put on the blacklist were taken off the list again. This implies that once there is a Tether freeze, it does not often get lifted.
Another study from 2023 through 2025 has revealed a broader trend. Tether supposedly immobilized about $3.3 billion worth of assets on 7,268 addresses within those three years.
The amount was substantially higher compared to the actions of the rival stablecoin provider Circle. The data points to Tether’s larger role in stablecoin enforcement.
Tether has also disclosed larger aggregate figures. In February, Reuters reported that the company had frozen $4.2 billion in tokens for three years due to being associated with criminal activities.
Tether Freeze Cases Include Sanctions and Scam Probes
Approximately $3.5 billion among them was immobilized after 2023. During this time, authorities stepped up their efforts to prevent crimes related to crypto assets.
Tether stated that in April, it worked with the Office of Foreign Assets Control (OFAC) of the US Treasury and relevant law enforcement entities by freezing USDT worth over $344 million at two Tron wallets.
According to US officials, those wallets had been used to evade sanctions targeting Iran. Furthermore, in February, Tether assisted law enforcement entities in freezing USDT worth over $61 million associated with a ‘pig butchering’ scheme.
There have been concerns over the increasing frequency of Tether’s freeze actions, sparking a debate within the crypto space. While some are supportive of freezing in fraud and sanctions cases, others have doubts about the extent of control issuers may have over blockchain assets.
Stablecoin issuers such as Tether control minting and burning functions. Onchain data shows that blacklisting is now a regular tool in scam, fraud, and sanctions investigations.
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