Zama Review 2026: FHE Confidential Finance on Ethereum

Zama is an open source cryptography company building Fully Homomorphic Encryption (FHE) tools for blockchains. Its homepage calls it the confidentiality protocol for onchain finance, aimed at institutions that need to issue, trade and manage assets on public chains without exposing amounts and balances.

The protocol has live products: confidential tokens such as cUSDC, confidential vaults for yield, and confidential swaps. It also provides the ERC-7984 token standard and an SDK for developers. DefiLlama tracks it in the Privacy category on Ethereum, with about $119.8 million in TVL, a 12.4% drop over seven days, and a listing date of May 2026.

The homepage cites real deployments: Morpho and Steakhouse for confidential yield, T-REX Ledger for RWA, Bron for payroll, Raycash for banking, Blockscout for explorer support, and GSR for a confidential OTC trade. These are the project's own claims. The ZAMA token exists, with staking and bridging links on the site, and a search result reports a Series B raise of $57M in June 2025.

Zama uses Fully Homomorphic Encryption, a form of cryptography that lets software compute on data while it stays encrypted. On a public blockchain, balances and transfer amounts are normally visible to everyone. Zama keeps those values encrypted, including while smart contracts process them.

For users, the entry point is shielding. A user deposits USDC into the official cUSDC contract and receives cUSDC 1:1, and the balance is encrypted from that point. Confidential tokens follow the ERC-7984 standard and can be sent, placed in confidential vaults or traded in confidential swaps. Unshielding converts them back to the regular token.

The homepage says the protocol runs natively on any L1 or L2 without a new chain or trusted intermediary, and stays publicly verifiable. It also describes programmable compliance, meaning confidentiality can coexist with regulatory requirements. How decryption rights and compliance controls are implemented is not detailed publicly.

Fees are not published. There is no stated charge for shielding, unshielding, swapping or vault deposits.

Users would see network gas costs and any product-level fees inside the Zama App and the documentation before confirming a transaction. Encrypted computation may carry costs beyond ordinary transfers, but the project does not say.

DefiLlama lists no audits for Zama, and the project does not include audit reports. The homepage links to a Security Status page, which readers should review. FHE-based smart contracts are a newer approach, so cryptographic and implementation risk is higher than for simple token contracts.

Shielding means depositing tokens into a contract, so smart-contract risk applies. Compliance-oriented design also means confidentiality is not the same as anonymity. No hacks or incidents appear. Check local regulations on privacy tools and never deposit more than you can afford to lose.

Zama is for institutions exploring RWA tokenization, payroll and OTC trading on public chains, and for developers who want to add encrypted balances through ERC-7984. DeFi users who value transaction privacy may also find it useful, provided they accept the compliance-focused design.