Circle has frozen a smart contract belonging to Zama protocol, locking $12.6 million in user funds and reigniting a long-running debate about the degree of centralized control that stablecoin issuers hold over ostensibly decentralized onchain assets. The action was flagged by onchain investigator ZachXBT.
The freeze highlights a structural tension at the heart of DeFi: USDC, the stablecoin Circle issues, carries a built-in blacklisting function that allows Circle to freeze any address or contract holding the token — a compliance tool that regulators have long demanded but that users and protocol developers often underestimate until it is exercised.
For Zama protocol participants, the immediate consequence is that $12.6 million in funds are inaccessible.
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