Solana Founder Warns Ethereum L2s Aren’t Quantum Safe-Are Your Funds at Risk?

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“Not Quantum Safe”: Solana Founder Warns on <a href="https://minority-mindset.com/eth-usd/">Ethereum</a> L2s

Key Highlights

  • Anatoly Yakovenko said Ethereum Layer 2 networks are “not quantum safe” and warned users about long-term security risks.
  • He argued that Ethereum L2s rely on multisignature bridges and complex systems, which can create security weak points.
  • Solana is taking a different approach by preparing early for quantum threats, with plans for quantum-resistant cryptography.

Anatoly Yakovenko, a founder of Solana, recently warned on X that Ethereum’s Layer 2 networks aren’t protected against potential future attacks from quantum computers. He advises users to reconsider how secure they believe these networks are for the long term.

“Ethereum L2s are not quantum safe, abandon all hope,” he wrote. 

Ethereum L2s are not quantum safe, abandon all hope

— toly 🇺🇸 (@toly) May 2, 2026

This comment joins a growing discussion within the cryptocurrency world about the potential impact of future quantum computers. Experts predict that, eventually, quantum computers could compromise the security that currently protects crypto wallets and networks.

Yakovenko raised concerns about the long-term security of Ethereum’s Layer 2 solutions, questioning just how safe they actually are.

Concerns about Ethereum L2 security

My research has led me to a key point about Yakovenko’s perspective: he believes Layer 2 networks are largely reliant on multisignature bridges and setups for transferring funds across different blockchains. This latest observation really reinforces that idea.

He explained that these systems usually require multiple people to authorize transactions, and this can be risky. If there’s a problem or a security breach, having many approvals can actually make things more vulnerable.

In a now-deleted post from 2025, he explained that creating a complete ‘LZ’ system involves incredibly complex code, making it impossible to eliminate all bugs. He believed that even with years of work, these systems would always have hidden risks for users.

I’ve been looking at bridges like Wormhole – the one connecting Ethereum to Solana – and it’s interesting. Even these cross-chain solutions seem to carry similar risks to just staying within the Ethereum ecosystem. What’s a bit frustrating is that even with those risks, they still contribute to Ethereum’s overall revenue, so the base layer benefits either way.

Solana’s plan for quantum safety

Meanwhile, Solana is taking a different approach by preparing early for possible quantum threats.

As a researcher following Solana, I’ve been looking into their recent plans for future-proofing their security. They’re taking a measured approach to becoming quantum-resistant, prioritizing preparation over immediate, drastic changes. Essentially, they want to be ready for the potential threat of quantum computers, but they’re holding off on major overhauls until that threat actually materializes. It’s a ‘prepare now, act later’ strategy.

Both Anza and Firedancer, leading engineering groups within the Solana network, have chosen Falcon as the best option for a digital signature system that will be secure even with the future arrival of quantum computers.

Falcon is built to remain secure in the future, even if quantum computers become advanced enough to crack today’s security systems. It’s also designed to maintain high performance, which is crucial for the speed of the Solana network. Development teams for both projects have begun creating initial test versions.

No immediate changes for now

Current research suggests that switching to post-quantum cryptography shouldn’t significantly slow down performance. However, the foundation is proceeding cautiously with blockchain upgrades, as these are complicated and need agreement from many different parts of the network.

The crypto world is seeing two main approaches to development right now. Ethereum is working on becoming faster and more efficient by building out many “Layer 2” networks. Meanwhile, Solana is proactively preparing for potential future threats from quantum computing, even though that technology is still years away and its impact isn’t certain.

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2026-05-02 20:06