Key Highlights
Tether blacklisted roughly $344 million in USDT held across multiple Tron addresses flagged for illicit activity.
The freeze is one of the largest single actions by Tether and follows its expanded cooperation with U.S. and global law enforcement.
Tron remains the dominant chain for USDT supply, accounting for more than half of the $140 billion-plus circulating stablecoin.
Tether has frozen about $344 million in USDT on the Tron network, describing the funds as linked to illicit activity, according to a statement published by the company and on-chain data.
The affected addresses were added to Tether's blacklist contract, rendering the tokens non-transferable. Tether said the action was taken in coordination with law enforcement, though it did not name specific agencies or cases.
The freeze is one of the largest single interventions since Tether joined the United States Secret Service and the Department of Justice in a dedicated cooperation framework. Since its launch, the program has resulted in the recovery or immobilization of over $2.5 billion in USDT, per Tether's own disclosures.
Tron continues to dominate USDT issuance, with more than 50% of the token's $140 billion-plus supply living on the network, according to DefiLlama. That concentration has made the chain a frequent target for enforcement actions, particularly those tied to sanctions evasion and laundering networks operating across Southeast Asia and the Middle East.
Tether CEO Paolo Ardoino has repeatedly argued that the company's ability to freeze tokens is a feature rather than a flaw, pointing to its track record of working with authorities. Critics say the same centralized control undermines USDT's claim to censorship-resistant utility.
