Security

Binance thieves race stablecoin freezes as Circle locks $823 million

Issuers froze billions in stolen stablecoins within hours, while Chainalysis says the attackers are using automated laundering methods it had not seen before.

The people behind the $6.3 billion Binance theft moved quickly to stay ahead of stablecoin issuers, swapping tokens that could be frozen for assets that no company can block. Blockchain analysts say the laundering methods are new.

What happened

Tether, Circle and other issuers acted within hours of the breach to immobilize billions of dollars in stolen stablecoins. Circle alone froze $823 million. The attackers responded by converting stablecoins into other cryptocurrencies that issuers have no power to freeze.

Chainalysis said on October 30 that investigators had identified thousands of transactions executed in short bursts, a pattern that points to automation designed to hide where the money is going. The firm described the tactics as previously unseen.

Background

Centrally issued stablecoins such as USDT and USDC include controls that let the issuer freeze tokens held at specific addresses, usually at the request of law enforcement or when theft is clear. Native assets like bitcoin and ether have no such switch. That difference is why thieves usually try to swap out of stablecoins as soon as possible after a hack.

Why it matters

The freezes show how much of the recovery effort now depends on a handful of private companies. Legal experts are divided over what that means: some question whether smaller victims of theft would get the same fast response, and many stress that freezing funds is only the first step. Returning money to its owners can take far longer and usually runs through the courts. Meanwhile, every hop the attackers make into assets that cannot be frozen makes the trail harder to follow.

Written by Tech Security with AI assistance. Not financial advice. See our disclaimer.

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