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Ethereum’s Vitalik Buterin Makes a New Bet on Zcash and Privacy

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Ethereum’s Vitalik Buterin Makes a New Bet on Zcash and Privacy

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.

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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.

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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.

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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 assumptions, and protecting users even under hostile conditions.

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Privacy, in that framing, is not optional. It is core infrastructure.

ZCash Daily Price Chart. Source: CoinGecko

The Privacy Push Is More Critical Than Ever

Buterin has warned that financial transparency without strong cryptographic privacy creates long-term risks, including surveillance, coercion, and systemic fragility.

He has increasingly praised systems that embed privacy at the protocol level rather than layering it on as an optional feature. Zcash’s shielded transaction model aligns closely with that philosophy.

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By backing Shielded Labs, Buterin is effectively endorsing privacy-preserving design paired with stronger settlement guarantees—two areas he sees as underinvested across the industry.

A Signal to the Broader Crypto Ecosystem

The donation also lands at a moment when Ethereum itself is reassessing parts of its scaling and security roadmap.

While Buterin has criticized superficial innovation and “copy-paste” infrastructure elsewhere, his support for Zcash highlights what he sees as meaningful progress: protocol-level upgrades that improve safety, finality, and user protection.

In that sense, the move is less about Ethereum versus Zcash—and more about the kind of blockchain architecture Buterin believes will survive long term.

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Crypto World

Friday’s eth.limo Hijack Caused by Social Engineering on EasyDNS

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Friday’s eth.limo Hijack Caused by Social Engineering on EasyDNS

Ethereum Name Service gateway eth.limo has revealed that the domain hijacking on Friday was caused by a social engineering attack directed against EasyDNS, its domain name service provider. 

According to a postmortem published by eth.limo on Saturday, an attacker impersonated one of its team members to initiate an account recovery process with easyDNS, granting access to the eth.limo account and allowing them to alter domain settings.

“The NS records were changed and directed to Cloudflare… Once we understood that a DNS hijack had taken place, we immediately notified the community as well as Vitalik Buterin and others. We then began contacting EasyDNS in an attempt to respond to the incident,” the company said.

Eth.limo serves as a Web2 bridge, providing access to around 2 million decentralized websites using the .eth domain name. Hijacking the service could allow an attacker to redirect users to malicious websites. Ethereum co-founder Vitalik Buterin warned users Friday to avoid his blog until the incident was resolved.

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Mark Jeftovic, CEO of easyDNS, has publicly accepted responsibility for the incident in its own postmortem report. 

“We screwed up and we own it,” said Jeftovic on Saturday. 

“This would mark the first successful social engineering attack against an easyDNS client in our 28-year history. There have been countless attempts.”  

Both companies have pointed to the Domain Name System Security Extension (DNSSEC) in thwarting the hacker’s attempts to do further damage. 

The attacker couldn’t produce valid cryptographic signatures, so Domain Name System resolvers rejected the attacker’s forged DNS responses, causing users to see error messages instead of being redirected to malicious sites. 

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“DNSSEC was enabled for their domain when the attackers attempted to flip their nameservers, presumably to effect some manner of phishing or malware injection attack, DNSSEC-aware resolvers, which most are these days, began dropping queries,” Jeftovic said. 

Source: eth.limo

In its postmortem, eth.limo noted that because the attacker lacked the signing keys, they were unable to bypass the safeguards, which likely “reduced the blast radius of the hijack. We are not aware of any user impact at this time. We will provide updates if that changes.”

easyDNS makes changes since the attack

Jeftovic described the social engineering attack as “highly sophisticated,” and said easyDNS is still conducting a post-mortem on how the breach occurred, and has already begun rolling out changes to prevent a recurrence.

Source: easyDNS

“In eth.limo’s case, we will be migrating them to Domainsure, which has a security posture more suited toward enterprise and high-value fintech domains, TLDR there is no mechanism for an account recovery on Domainsure, it’s not a thing,” he added.

“On behalf of everyone here, I apologize to the eth.limo team and the wider Ethereum community. ENS has always had a special place in our heart as the first registrar to enable ENS linking to web2 domains and we’ve been involved in the space since 2017.”

Related: RaveDAO denies manipulation as Binance, Bitget probe RAVE trading activity

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The eth.limo incident is the latest in a series of domain hijackings targeting crypto projects. Days earlier, decentralized exchange aggregator CoW Swap lost control of its website after an unknown party hijacked its domain. 

Steakhouse Financial, a DeFi advisory and research firm, similarly disclosed at the end of March that it had lost control of its domain to an attacker.

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