Ethereum’s Vitalik Buterin Goes All-In on Zcash With New Privacy Bet

Ethereum founder Vitalik Buterin has donated to Shielded Labs, backing development of Crosslink, a proposed consensus upgrade for Zcash. The move signals a deepening commitment by Buterin to privacy-preserving infrastructure, as well as growing interest in strengthening finality and settlement guarantees in proof-of-work blockchains. Thank you to @VitalikButerin for supporting Shielded Labs and Crosslink! A portion of the funding will be used to spin up a persistent incentivized testnet, where users running finalizers or staking can earn small amounts of ZEC. We’re looking forward to broader community… https://t.co/a55ufBT3Wm— Jason McGee 🛡 (@aquietinvestor) February 6, 2026 Vitalik Doubles Down on Privacy Infranstructure in Crypto Shielded Labs is developing Crosslink, a parallel finality layer designed to sit on top of Zcash’s existing proof-of-work consensus. In simple terms, Crosslink adds a second confirmation system that locks in transactions faster and more decisively. This reduces the risk of chain reorganizations, rollbacks, and double-spend attacks. As a result, exchanges can shorten confirmation times, cross-chain bridges gain stronger security guarantees, and applications become easier to build on Zcash. Zcash goodZooko goodAdding hybrid proof of stake good— vitalik.eth (@VitalikButerin) February 6, 2026 What Shielded Labs Does for Zcash Shielded Labs is a Zcash-focused research and engineering group working on core protocol upgrades rather than applications or tooling. Its mandate centers on improving Zcash’s long-term security, usability, and cryptographic guarantees—especially around shielded transactions and privacy-first design. Buterin’s support comes amid a broader shift in his public advocacy toward privacy and resilience over growth metrics or convenience. In recent months, he has repeatedly argued that blockchains must optimize for worst-case scenarios, not best-case user experience. That includes resisting censorship, minimizing trust assum...