What Is zk.money? Ethereum Privacy Wallet Returns After Three Years

Ethereum transactions are generally visible on a public blockchain, making it possible to trace wallet activity and payment amounts.

zk.money aims to offer an alternative by allowing users to make private crypto payments through Aztec Network.

After a three year hiatus, the Ethereum privacy wallet has returned with a new infrastructure and updated features.

Its relaunch introduces a way to send and receive stablecoins privately, although deposits and withdrawals still have some public information and transaction limits.

Key Takeaways

• zk.money has returned with private stablecoin payments powered by Aztec Network.
• The wallet offers self custody and transaction privacy, but Ethereum deposits remain publicly visible.
• Its relaunch includes transaction limits and security considerations while the network continues developing.

What Is zk.money?

Source: zk.money

zk.money is an open source, self custodial wallet designed to make cryptocurrency payments more private.

Originally launched in 2021 by Aztec, the wallet attracted more than 75,000 unique wallets and processed over $100 million in transaction volume before its original version began winding down in 2023.

The product has now returned under Aztec Labs, using the newer Aztec Network instead of its original infrastructure.

This network operates as a privacy focused layer on Ethereum, allowing users to make transactions without publicly exposing their balances, payment amounts, or counterparties.

The earlier shutdown was attributed to technical limitations in the original architecture rather than a lack of user interest.

Aztec subsequently focused on developing a broader privacy network that could support different applications.

The relaunch reflects that shift. Instead of relying on its original system, zk.money now uses Aztec’s newer infrastructure to provide private payments.

However, the network remains under development, making it important for users to understand its current limitations.

How Does the zk.money Ethereum Privacy Wallet Work?

The main purpose of zk.money is to reduce the amount of financial information visible on a public blockchain.

It achieves this by moving transactions inside Aztec Network, where payment details are protected by its privacy system.

Users can deposit DAI, USDC, or USDT into their wallets. USDC and USDT are automatically converted into DAI, which currently serves as the wallet’s internal settlement asset.

How a typical payment works

• Deposit: A user transfers supported stablecoins from Ethereum into zk.money. This initial transaction remains publicly visible and requires Ethereum gas.
• Private payment: Once funds enter Aztec Network, users can send payments without publicly revealing the transaction amounts, balances, or participants.
• Withdrawal: Users can move funds back to Ethereum. The withdrawal is visible on the public blockchain.

The wallet also supports readable payment tags, such as alice.zk.money, making it easier to receive payments without sharing a long wallet address.

Each deposit address is single use, which helps prevent separate incoming payments from being easily linked.

However, privacy is not absolute. Information surrounding deposits and withdrawals can remain visible, and users should consider how their activity might be connected across different networks.

What Are zk.money’s Features and Transaction Limits?

The relaunched zk.money offers several features intended to make private payments accessible while keeping transactions within controlled limits.

One important feature is self custody. Users control their wallets through passkeys, which can be stored using supported password managers or security keys.

Aztec Labs does not hold a copy of the passkey or maintain an administrative key that can move users’ funds.

The wallet also removes Ethereum gas costs from payments made inside zk.money. However, deposits still require Ethereum gas, while withdrawals have their own fees.

• The initial transaction limits are relatively restrictive:
• Deposits, payments, and withdrawals are limited to less than $2,500 each.
• The wallet has a shared $50,000 deposit allowance that replenishes over time.
• Deposits cost approximately $0.35 plus Ethereum gas.
• Withdrawals cost approximately $0.20.
• Up to 100 transactions per day may receive fee subsidies, depending on available funds.

For users exploring cryptocurrency platforms alongside privacy wallets, Bitrue provides a separate place to buy, sell, and trade digital assets.

Registering an account can help users manage their trading activities while keeping private payment tools and exchange services distinct.

What Changed With the zk.money Relaunch?

The return of zk.money is more than a simple reopening. Its underlying infrastructure has changed, with Aztec Network now providing the environment for private transactions.

The original wallet began winding down in 2023 after operating for roughly two years.

Its successor uses the newer network developed following Aztec’s shift toward a broader privacy focused ecosystem.

The relaunch also introduces a more accessible payment identity system. Instead of relying exclusively on lengthy wallet addresses, users can claim tags that other people can use to send payments.

These tags are publicly associated with account addresses on Ethereum, although transfers made within Aztec remain private.

However, the new version is still in an early stage. Users face transaction limits, and the network’s security arrangements continue to evolve.

The wallet also requires a passkey, making account recovery a particularly important consideration.

Anyone considering the relaunch should distinguish between features already available and improvements that may arrive later.

The wallet’s return does not mean that every technical or security concern has been resolved.

What Are the Risks of Using zk.money?

Although zk.money provides privacy and self custody, these features do not eliminate the risks associated with cryptocurrency.

The most immediate concern is passkey management. Losing access to every device or credential holding a user’s passkey can result in permanent loss of wallet access.

The wallet does not offer a conventional password reset or account recovery service.

Network security is another consideration. Aztec Network remains under active development, and its documentation warns about potential vulnerabilities.

A previously disclosed critical issue affected its V5 zero knowledge proving system.

Oxide, a separate monitoring protocol, is being used to detect transaction problems associated with the known vulnerability while a permanent fix is planned.

Oxide adds another security layer, but it does not remove all potential risks.

Users should also understand that privacy protections primarily apply to transactions inside Aztec, not the public Ethereum transactions used for deposits and withdrawals.

Finally, stablecoins can carry their own risks, including changes in market conditions and potential disruptions to their underlying systems.

Users should understand these limitations before depositing funds and avoid treating privacy as a guarantee of complete anonymity.

Conclusion

zk.money has returned with a new approach to private Ethereum payments, using Aztec Network to conceal transaction details within its system.

Its self custodial design, readable payment tags, and stablecoin support provide practical features for users seeking more financial privacy.

However, the wallet still has transaction limits, passkey recovery risks, and security considerations associated with an evolving network.

Anyone exploring zk.money should review these limitations before depositing funds.

For users who also need a platform for buying, selling, and trading cryptocurrencies, Bitrue offers a separate service with account security features and a straightforward trading experience.

FAQ

What is zk.money?

zk.money is an open source, self custodial cryptocurrency wallet that allows users to make private payments through Aztec Network. It is designed to conceal transaction amounts, balances, and participants for payments made within its privacy system.

Is zk.money available again?

Yes. zk.money has returned after its original version began winding down in 2023. The relaunched wallet operates on Aztec Network and focuses on private stablecoin payments.

Which cryptocurrencies does zk.money support?

zk.money currently accepts DAI, USDC, and USDT deposits. USDC and USDT are automatically converted into DAI, which serves as the wallet’s internal settlement asset.

Are zk.money transactions completely private?

No. Transactions made within Aztec Network conceal important details, including payment amounts and participants. However, deposits and withdrawals involving Ethereum remain publicly visible on the blockchain.

Is zk.money safe to use?

zk.money uses a self custodial model, so users retain control of their funds through their passkeys. However, losing a passkey can mean losing access permanently, and Aztec Network remains under development. Users should understand these risks before depositing funds.

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