Solana co-founder Anatoly Yakovenko said Ethereum Layer 2 networks (blockchains built on top of Ethereum) are not quantum safe, according to the provided statement. The source does not include technical details, evidence, or a broader response from Ethereum developers, so the claim remains an attributed remark rather than a substantiated finding in this input. The comment touches on a recurring industry concern about whether blockchain cryptography could eventually be weakened by sufficiently advanced quantum computers.