Aztec Labs Launches Nyx Privacy Wallet on Enhanced Aztec Network

Aztec Labs has officially reintroduced zk.money, now branded as Nyx, a self-custodial privacy wallet that offers yield-earning capabilities. This launch coincides with the Aztec Network's Alpha V5 upgrade, which went live in July 2026, marking a significant enhancement in performance.

The Alpha V5 upgrade has doubled the speed of private transaction proving and halved transaction costs, addressing previous user complaints regarding the slow and expensive nature of zero-knowledge (ZK) privacy solutions. Nyx operates on a fully decentralized architecture, allowing users to generate transaction proofs directly on their devices, ensuring that no intermediary server has access to transaction details.

Aztec Labs had previously shut down zk.money in March 2023 due to concerns over centralized infrastructure undermining privacy. The team opted to rebuild the platform using Noir, a programming language designed for ZK circuits, focusing on a decentralized privacy framework.

The relaunch of Nyx is part of a broader decentralization strategy supported by the $AZTEC token, which offers governance rights and staking opportunities. The token sale concluded in December 2025, raising approximately $60 million with a significant number of small contributors.

Future developments for the Aztec Network include private smart contract capabilities on Ethereum and cross-chain privacy integrations, which aim to enhance privacy in decentralized finance (DeFi) applications.