Aztec Brings zk.money Back Three Years After Shutdown, This Time on Its Privacy-Focused Ethereum Layer 2

Frank Joaquin

Date: September 30, 2026

Aztec Labs has revived zk.money three years after shutting down the original privacy application, placing the rebuilt wallet on the company’s newer Ethereum Layer 2 infrastructure.

The self-custodial wallet allows private balances and payments without publishing the user’s balance, payment amount or counterparty to a public ledger, Aztec says. The product also introduces readable handles and payment links intended to make private transfers less cumbersome than conventional blockchain addresses. The Block

The original zk.money launched in 2021 and was discontinued in 2023 while Aztec redirected development toward its privacy-focused network. Before shutdown, Aztec says the original service reached more than 75,000 unique wallets and processed over $100 million. The Block

The rebuilt product runs on Aztec Network rather than the earlier architecture. Reporting around the launch identifies the new wallet as Nyx and ties it to the network’s Alpha V5 infrastructure, which Aztec says improved private-transaction proving speed by more than two times while reducing costs by roughly half. Crypto Briefing

The launch arrives as blockchain privacy is again becoming a competitive infrastructure issue rather than a niche feature. Public blockchains expose balances, counterparties and transaction histories by default, a property that can be problematic for payroll, business payments and institutional financial activity even when the underlying transaction is legitimate.

TOKEN RECON ASSESSMENT

Aztec is attempting something more difficult than relaunching an old wallet. It is testing whether consumer-grade blockchain privacy can become usable enough to survive outside specialist crypto communities.

The previous zk.money already demonstrated some demand. The new test is scale. Lower proving costs and faster zero-knowledge infrastructure matter only if the rebuilt architecture can support substantially more users and transaction volume without sacrificing the privacy guarantees that distinguish it.

Regulatory treatment remains the external risk. Privacy infrastructure can protect legitimate financial confidentiality while also making illicit tracing harder. Aztec’s next phase will therefore be judged simultaneously on technical performance, adoption and how regulators respond to privacy moving closer to mainstream Ethereum applications.