Ethereum users get another way to pay privately as zk.money returns after three years

Aztec Labs has resumed service for zk.money, a self‑custodial wallet that moves payments onto the Aztec Network to hide balances, amounts and counterparties after funds enter the system. Users can initiate deposits from Ethereum using DAI, USDC or USDT; the latter two stablecoins are converted into DAI during the inbound transfer, leaving DAI as the sole asset used inside zk.money. Deposits from Ethereum remain publicly visible — the sender and amount on Ethereum are traceable — but once inside Aztec the wallet conceals recipients, balances and payment sizes. The interface also supports human‑readable names (for example bob.zk.money) and payment links to simplify transfers without exposing long addresses. The relaunch is an early Alpha with operational limits and warnings. Individual deposits, payments and withdrawals are capped at $2,500, and all users share a $50,000 daily deposit allowance designed as a precaution for the experimental system; raising those limits would require deploying a new contract. Fees are listed at $0.35 plus Ethereum gas for deposits and $0.20 for withdrawals, and users receive up to 100 sponsored transactions per day inside zk.money subject to the sponsored contract’s available funds. Aztec Labs cautions that the software has not been fully audited and that critical bugs remain possible. Contributors disclosed a critical flaw in the network’s V5 proof system in August and indicated a V6 fix was planned; Aztec Labs said zk.money will relaunch before that issue is fixed and will rely on a separate system called Oxide to check payments for errors until the upgraded network is available. The company also screens deposit and withdrawal addresses against a sanctions policy and says its sealed co‑signing server cannot on its own spend user funds. Previously, the original zk.money ran from 2021 to 2024, during which it reportedly served more than 75,000 wallets and processed over $100 million in volume.