Aztec Labs has relaunched zk.money, a self-custody wallet designed for the Ethereum network that allows private transfers with stablecoins. After three years of inactivity, the tool returns, supported by zero-knowledge proof (ZK) technology to protect users' financial data in the crypto ecosystem.
The return of zk.money to Ethereum
Three years after its strategic closure, Aztec Labs reactivates zk.moneyA solution aimed at improving privacy in decentralized finance. This tool operates on the Aztec Network, a Layer 2 of Ethereum focused on keeping balances, amounts, and transaction recipients hidden.
On-chain privacy has been one of the industry's biggest challenges, as public blockchains expose the entire financial history of wallets by default. With this move, developers aim to offer an alternative where confidentiality is the norm, not the exception.
How do private transfers and ZK proofs work?
The system allows users to claim human-readable identifiers, similar to ENS (Ethereum Name Service) domains, such as bob.zk.moneyThis simplifies operations and avoids the use of complex alphanumeric addresses. While initial transfers from the Ethereum mainnet remain public, internal movements within the wallet are kept completely private.
This is achieved through zero-knowledge proofs generated on the user's own device. These cryptographic receipts confirm that a transaction is valid without revealing its underlying details. It's a fundamental technical advancement that you can explore further in the free resources of Bit2Me Academy, where it details how this cryptography is transforming the scalability and security of the network.
Security limits and compatible stablecoins
During this initial deployment phase, the protocol has established strict limits to ensure network stability. Individual transactions are restricted to a maximum of $2.500 (approximately €2.250), with a global daily inflow limit of $50.000 (approximately €45.000) shared among all users.
The platform supports recognized stablecoins such as USDC, DAI, and USDT. It's important to remember that, under the MiCA Regulation in the European Union, the availability and trading of certain unregulated assets like USDT are subject to restrictions. Therefore, its mention in this context is purely for technical reasons related to the decentralized protocol and does not constitute a commercial offer. If you wish to acquire digital assets that comply with European regulations, you should always use your [unclear - possibly "unclear" or "unclear"]. Secure exchange.
Self-custody and the legacy of the original project
As a self-custodial wallet, Aztec ensures it has no technical capacity to freeze funds, nor is there a central administrator with special privileges who can censor transactions. Complete control rests with the user and their private keys.
In its first iteration, launched in 2021, zk.money achieved remarkable success, attracting over 75.000 wallets and processing a volume exceeding $100 million (approximately €90 million). However, the team decided to temporarily pause the project to focus on developing its own network infrastructure and tools like Aztec Connect, which allowed its privacy technology to be integrated into other DeFi protocols.
The future of privacy in the crypto ecosystem
The reactivation of this tool coincides with a time when privacy is once again rising in the ranks of Ethereum developers' agenda. Currently, the community is evaluating proposals for the next Hegotá upgrade, planned for next year, which would allow privacy pools to pay their own transaction fees without relying on intermediaries.
Even prominent figures like Vitalik Buterin have recently pointed out that special-purpose applications could achieve very high levels of confidentiality through the use of zero-knowledge proofs, reinforcing the vision of a more secure and private cryptographic world computer.
FAQ
What is zk.money and what network does it run on?
It is a self-custodial wallet developed by Aztec Labs that operates on the Aztec Network, a Layer 2 of Ethereum. Its main purpose is to allow the private sending and receiving of stablecoins, concealing amounts and addresses using advanced cryptography.
Are all transactions completely anonymous?
Not entirely. While internal transfers within the wallet environment are private thanks to zero-knowledge proofs, initial transfers originating from the Ethereum mainnet remain visible on the public blockchain.
What limitations does the platform have in its initial phase?
During its reactivation phase, the protocol imposes a limit of $2.500 (approximately €2.250) per individual transaction. Additionally, there is a combined daily inflow limit of $50.000 (approximately €45.000) for the entire network, designed to manage risk.
The debate about privacy on public networks continues to gain traction. Tools like this demonstrate that the demand for confidential transactions remains strong and that technology is ready to offer viable solutions.
As the ecosystem matures and adapts to demanding regulatory frameworks, technical innovation in the secondary layers will be critical. Balancing the inherent transparency of blockchain technology with users' right to financial privacy is the next major challenge for the sector.
Investing in cryptoassets is not fully regulated, may not be suitable for retail investors due to high volatility and there is a risk of losing all invested amounts.
Generative artificial intelligence tools were used to create this article.
