Tether freezes over $1 million worth of USDT belonging to a single address

Quick Take

  • Tether blacklisted an Ethereum address last week that had over $1 million of USDT balance in it.
  • A Tether spokesperson told The Block that Tether regularly works with regulators for freezing addresses.

Stablecoin issuer Tether froze over $1 million worth of USDT last week, according to on-chain data.

The amount is significant, given it belongs to a single blockchain address. Tether called the "AddedBlacklist" function on December 30 to block this address within this transaction.

This address now won't be able to move the frozen funds. When Tether blacklists an address, it freezes the USDT balance of it, as The Block has reported previously.

It is unclear who owns this address, which holds many other tokens in the low five-figure ranges that it hasn't transferred out. When contacted, a Tether spokesperson declined to share those details to maintain the owner's privacy but said Tether regularly works with regulators and law enforcement agencies worldwide, including on any cases related to hacks and scams, for freezing addresses.

"Through the freezing of addresses, Tether has been able to help recover funds stolen by hackers or are compromised," said the spokesperson.


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Tether began banning blockchain addresses in 2017 and has blocked over 500 addresses to date on Ethereum, according to The Block's Data Dashboard.

Tether also has a "recovery" mechanism in place, meaning it can freeze USDT and reissue them in certain cases. For example, if a user sends USDT to the wrong address, it can help recover it by freezing the USDT sent to the wrong address and reissuing new USDT to the user.

In the latest blacklisting case, however, the funds remain in the frozen address. Such cases usually mean that a frozen address is under dispute or being investigated by a law enforcement agency, said the Tether spokesperson.

© 2023 The Block. All Rights Reserved. This article is provided for informational purposes only. It is not offered or intended to be used as legal, tax, investment, financial, or other advice.

About Author

Yogita Khatri is a senior reporter at The Block, covering all things crypto. As one of the earliest team members, Yogita has played a pivotal role in breaking numerous stories, exclusives and scoops. With nearly 3,000 articles under her belt, Yogita holds the records as The Block's most-published and most-read author of all time. Prior to joining The Block, Yogita worked at crypto publication CoinDesk and The Economic Times, where she wrote on personal finance. To contact her, email: [email protected]. For her latest work, follow her on X @Yogita_Khatri5.