Tether Freezes Over $500M in USDT Across Tron and Ethereum

TLDR

• Tether freezes $514M in USDT across Tron and Ethereum wallets

• BlockSec data shows 370 USDT addresses blacklisted in 30 days

  

• Tron accounts hold most frozen USDT as enforcement activity grows

• Tether’s 2025 freezes reached $1.26B across Ethereum and Tron

• Stablecoin blacklists raise fresh debate over issuer control and fraud

Tether froze more than $514 million in USDT across Tron and Ethereum within 30 days. BlockSec data showed 370 blacklisted addresses during the period, with Tron holding most frozen funds. The action strengthens Tether’s central role in stablecoin enforcement linked to illicit crypto activity.

Tron Accounts Hold Most Frozen USDT

Tron accounted for the largest share of recent USDT freezes, according to BlockSec’s USDT Freeze Tracker. The data showed 328 blacklisted Tron addresses within the 30-day period. Those wallets held about $505.9 million in frozen USDT.

The figures show how enforcement activity remains concentrated on Tron. Tether has used blacklist controls to immobilize funds tied to fraud, sanctions, and investigations. Therefore, Tron continues to appear in major stablecoin freeze reports.

The latest freeze activity adds to broader enforcement seen across 2025. BlockSec said Tether blacklisted 4,163 addresses across Tron and Ethereum that year. Those actions froze about $1.26 billion in USDT linked to high-risk activity.

Ethereum Freezes Add To Wider Enforcement Push

Ethereum recorded fewer blacklisted addresses than Tron during the same 30-day period. BlockSec data showed 42 Ethereum addresses added to the blacklist. Those wallets held about $8.73 million in frozen USDT.

Although Ethereum held a smaller share, the network remains part of Tether’s enforcement activity. The stablecoin issuer can block flagged wallets through contract-level controls. Hence, frozen addresses cannot move the affected USDT unless Tether removes restrictions.

The 2025 data also showed that most freezes stayed in place. BlockSec found that only 3.6% of blacklisted addresses later left the blacklist. Meanwhile, more than $698 million in frozen assets later moved through destroyBlackFunds.

Tether Blacklisting Raises Stablecoin Control Debate

Tether’s latest freeze wave comes after years of rising enforcement activity. A separate study estimated that the issuer immobilized about $3.3 billion from 2023 to 2025. That amount covered 7,268 addresses across Ethereum and Tron.

The company has also reported larger freeze totals in official disclosures. In February, Tether said it had frozen about $4.2 billion in tokens over three years. It linked those actions to scams, sanctions cases, and other illicit activity.

The growing use of blacklist tools has renewed debate across crypto markets. Stablecoin issuers can stop suspicious funds, but they also hold direct control over user balances. Tether’s recent actions show how enforcement power now shapes major stablecoin flows.

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