Zama’s confidential USDC vault has quickly climbed the ranks on Morpho’s Ethereum lending market, demonstrating early appetite for privacy-preserving DeFi products.
In a July 16 update, Zama said its Steakhouse Confidential Prime USDC vault held $23.23 million at Ethereum block 25,544,806, putting it eighth by total deposits among Morpho V1 and V2 USDC vaults on Ethereum. The snapshot is subject to change as users add or withdraw funds, but the pace of growth since the vault’s June 23 launch is notable: Zama reported more than $14 million deposited by July 2, rising to $23.23 million two weeks later.
How it works
- The vault accepts confidential USDC (cUSDC) rather than regular USDC. Zama uses Fully Homomorphic Encryption to keep individual balances and transaction amounts encrypted while still enabling those assets to interact with Ethereum applications.
- Steakhouse Financial curates the strategy, Morpho provides the lending infrastructure, and Zama supplies the confidentiality layer. Deposits flow into lending strategies on Morpho backed by collateral such as cbBTC, WBTC and wstETH.
Incentives and yield
- The vault launched with a 12-week rewards program on top of the yield from the underlying Morpho strategy. At launch, Zama said the native strategy was producing about 4% APY, and the extra incentives were designed to attract early depositors. The company acknowledged the incentive program helped boost deposits.
Market context
- Zama’s vault arrives as Morpho draws institutional and retail interest: Bitwise launched an onchain vault on Morpho in January, and consumer wallet integrations—like Trezor adding access to Steakhouse-curated USDC and USDT vaults in May—have broadened distribution. Those integrations let Zama’s product plug into existing liquidity on Ethereum rather than forcing users to move assets to a separate chain.
Regulatory test and compliance work
- The confidential USDC system faced a real-world test in May when a U.S. court order temporarily prompted Circle to freeze a Zama contract holding roughly $12.5 million in USDC. The freeze was later lifted and the funds returned to normal operation. Zama says the episode accelerated development of compliance and controlled-disclosure tools. The company stresses its approach encrypts transaction details (not anonymizing users outright) and plans features to meet legal and regulatory inquiries when required.
Why it matters
- Zama argues its cross-chain confidentiality model can add privacy to where liquidity already exists, rather than requiring a new Layer 1 or 2. The $23.23 million Steakhouse Confidential Prime USDC vault is an early proof point for that thesis; whether deposits hold steady after the incentive program ends will be a clearer indicator of sustained demand for confidential rails in mainstream DeFi.
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