Solana Co-Founder Raises Concerns Over Ethereum L2 Security — Real Risk or Just Rivalry?

Anatoly Yakovenko, one of the founders of Solana Labs, recently raised concerns about the security of Ethereum Layer 2 solutions.
According to him, Ethereum L2s may not be fully protected against future quantum threats. He even went as far as saying that “we should forget any hope of an easy fix,” suggesting that the problem could be deeper than many assume.
He also pointed out a bigger concern — the possibility that advanced AI systems could eventually break post-quantum cryptography (PQC) signatures in the future. If that happens, it could affect not just Ethereum L2s, but blockchain security as a whole.
This statement has sparked fresh debate in the crypto space about how secure current systems really are, and whether the industry is truly prepared for future technological threats like quantum computing and AI.
Now the big question:
Is he genuinely raising a valid concern, or just criticizing Ethereum L2s because of competition?
In reality, it’s a bit of both.
On one hand, competition between ecosystems like Solana and Ethereum naturally leads to criticism.
On the other hand, quantum and AI-related risks are real discussions already happening across the entire blockchain industry.
So instead of dismissing it as rivalry, it’s better to see it as a wake-up call — a reminder that blockchain security must keep evolving as technology advances.