Tether has blacklisted 371 wallets and frozen roughly $515 million in USDT across Ethereum and Tron in the past 30 days, highlighting renewed enforcement activity around the stablecoin, according to BlockSec’s USDT Freeze Tracker.
Key figures
- Total frozen (30 days): about $515 million (as of May 7, 2026)
- Blacklisted addresses: 371 (329 on Tron, 42 on Ethereum)
- Chain breakdown: ~ $506 million frozen on Tron and ~$8.73 million on Ethereum
BlockSec says its tracker watches on-chain USDT freeze, unfreeze and destroy events on Ethereum and Tron. The heavy concentration on Tron reflects that network’s outsized share of circulating USDT—making it the frequent conduit for transfers, exchange deposits and large wallet movements.
Context and enforcement actions
The recent flurry of freezes follows a wave of coordinated activity involving investigators and crypto firms. On-chain sleuth ZachXBT tied action to the collapse of the alleged DSJ Exchange / BG Wealth Sharing Ponzi, which reportedly took more than $150 million from users and disabled withdrawals. Between April 27 and May 3, he traced over $92 million moved across chains and said collaboration with Tether, Binance Security, OKX and U.S. law enforcement led to “$38.4M frozen by Tether” on May 4, with additional amounts frozen by exchanges and other services.
This month’s figures build on prior enforcement: BlockSec’s 2025 report found Tether blacklisted 4,163 unique Tron and Ethereum addresses last year, freezing about $1.26 billion in USDT across those chains.
Geopolitical enforcement
Tether has previously frozen large sums tied to national-security concerns. In a notable action, it froze $344 million in USDT across two Tron addresses after U.S. authorities linked those wallets to Iran’s IRGC—a move that was part of “Operation Economic Fury.” Separate reporting indicated U.S. seizures of Iran-linked crypto assets had approached $500 million.
Tether’s stance
Tether says it works with more than 340 law enforcement agencies across 65 countries and can restrict assets when wallets are linked to sanctions evasion, criminal networks or other unlawful activity—a position reiterated in an April statement.
Why it matters
The recent freeze activity underscores how much of the stablecoin enforcement landscape runs through Tron, and how cooperation among on-chain investigators, exchanges and law enforcement can translate into rapid asset restrictions. For traders and compliance teams, the episode is a reminder that large movements on chains with concentrated USDT supply can trigger regulatory and custodial intervention.
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