Ethereum Introduces 'Kohaku' Wallet to Enhance Privacy Ahead of Devcon

• Ethereum Launches Kohaku Wallet with a Focus on On-Chain Privacy
• Project will be revealed at Devcon 2025 in Argentina
• New framework limits data exposure in Ethereum transactions

The Ethereum Foundation announced the launch of the Kohaku wallet, a new on-chain privacy framework that will be officially unveiled at the Devcon conference in Argentina in November. The project aims to enable users to conduct private transactions without exposing personal information or unnecessary details.

Foundation developer Nicolas Consigny revealed that the Kohaku public demo and development kit (SDK) will be available for testing during the event. The tool is designed as a browser extension and reference implementation for developers looking to integrate privacy primitives directly into their decentralized applications (dApps).

According to Consigny, Kohaku was designed to minimize data exposure during blockchain transactions.

“Kohaku aims to ensure that each party to a transaction has knowledge only of what is directly necessary for that transaction and is exposed to the absolute minimum set of risks necessary for that transaction to happen,”

explained the developer.

The initiative is part of a broader strategy by the Ethereum Foundation to make privacy a core property within the ecosystem. On October 8, the foundation also announced the creation of the Privacy Cluster , a team of 47 engineers, researchers, and cryptographers dedicated to integrating privacy mechanisms into all layers of the Ethereum protocol.

According to the statement, privacy is considered essential to the sustainability of the blockchain, ensuring that the network remains "usable, trustworthy, and aligned with human freedom." The new cluster will work alongside the Privacy and Scaling Explorations (PSE) group to promote improvements in private payments, decentralized identities, and metadata protection.

PSE teams have been developing zero-knowledge proofs (ZK-proofs), which enable confidential and scalable transactions without compromising network security. Additionally, the foundation established an Institutional Privacy Task Force to create privacy and regulatory compliance guidelines, helping companies and financial institutions adopt enterprise-grade solutions.

With the launch of Kohaku and the advancements of the Privacy Cluster, Ethereum strengthens its position in the race for digital privacy, making it a fundamental element of the next generation of decentralized applications.