When a payment is made from a standard Ethereum wallet, the recipient has the ability to track the public transaction history associated with that wallet. Fortunately, users are increasingly presented with a diverse array of options to conceal their data. The latest alternative is presented by Privacy developer Aztec Labs. The firm announces the reintroduction of zk.Money, a wallet that conceals payment amounts and recipients while enabling individuals to transfer funds using names or payment links. The firm informed that users will have the capability to deposit dollar-pegged stablecoins DAI, USDC, and USDT originating from Ethereum. USDC and USDT are converted into DAI upon entry, resulting in DAI being the sole currency utilised within zk.money. On Ethereum, knowledge of an individual’s wallet address grants access to its balance and the ability to trace historical transfers. That can expose a business’s payments to suppliers or an individual’s spending history. zk.money shifts payments onto the Aztec Network, which is linked to Ethereum while concealing balances, amounts, and the identities of those involved in transfers.
Individuals have the option to request a payment by sharing a link or by sending one to a user-friendly name like bob.zk.money, instead of having to copy a lengthy wallet address. Aztec Labs asserts that the wallet is self-custodial, indicating that its operators lack the ability to spend or freeze the funds contained within it. “Onchain transactions between two individuals shouldn’t mean publishing your financial history to the world,” Joe Andrews said in a statement. Andrews noted that Aztec Labs selected DAI due to its perception as “the most decentralised of the mass-market stablecoins used today on Ethereum.” He stated that the wallet could accommodate additional assets in the future. Ethereum currently features applications that obscure payment details; however, transactions originating from a standard wallet continue to be publicly accessible. Its developers are considering modifications for the anticipated 2027. The Hegotá upgrade has the potential to enable privacy applications to manage transaction approvals and fees with reduced reliance on external services. Those proposals remain under evaluation, as Aztec Labs reintroduces a wallet that users can utilise within its own network.
Injecting capital into the system invariably results in a public record, nonetheless. Aztec’s documentation indicates that a deposit from Ethereum discloses the sender and amount, while the recipient on Aztec can maintain privacy. The relaunch is accompanied by certain limitations, however. All deposits, payments, and withdrawals are required to remain under the threshold of $2,500. All users collectively possess a daily deposit allowance of $50,000, which is subject to gradual replenishment over time. The documentation characterises those caps as a protective measure during the system’s initial phase and indicates that increasing them would necessitate a new contract. “The limits are in place as the system is new, experimental cryptography,” Andrews told. He said Aztec Labs plans to raise them as confidence grows and after a later version goes live. A deposit incurs a charge of 35 cents in addition to Ethereum fees, while a withdrawal is subject to a fee of 20 cents. Users are allocated 100 sponsored transactions daily within zk.money; however, payments are subject to delays if the contract responsible for their network fees depletes its funds or is unable to accommodate the current fee structure.
The wallet additionally evaluates Ethereum addresses utilised for deposits and withdrawals in accordance with a sanctions policy. A sealed server co-signs operations within zk.Funds, although the documentation indicates that it cannot autonomously utilise a user’s resources. The original zk.money was launched in 2021 and ceased operations in 2024. Aztec Labs reports that it catered to more than 75,000 wallets and facilitated transactions exceeding $100 million prior to its cessation of operations. That network remains in its initial Alpha phase. Aztec’s documentation cautions that its software has not undergone a comprehensive audit, indicating the potential presence of critical bugs. Contributors revealed a significant vulnerability in its V5 proof system in August, indicating that a resolution was anticipated for V6. The zk.money release does not specify the safeguards that are applicable to the relaunched wallet in light of that finding. Andrews indicated that zk.money is set to launch prior to the resolution of the flaw. He stated that a distinct system referred to as Oxide will verify payments for inaccuracies resulting from bugs in the network’s software. Users will be able to transition to the updated network once the resolution is prepared.
