Ethereum Foundation developer Barnabe Monnot has highlighted the importance of implementing proof of validity to maintain Ethereum's competitiveness, following a major security breach in the DeFi sector. The recent attack on KelpDAO's bridge, which resulted in losses of approximately $293 million, underscores the vulnerabilities in cross-chain infrastructure and restaking models. Monnot emphasized that Ethereum must evolve beyond being a mere transport layer to also serve as an issuance ledger, focusing on proof of validity and fast finality to reduce latency and enhance security. The attack on KelpDAO, which exploited stolen rsETH tokens, is the largest DeFi exploit of 2026 and part of a series of recent incidents affecting the cryptocurrency market. Ethereum's strategic initiatives now prioritize scaling the L1 and blob layers and improving user experience to address these challenges. Faster confirmation speeds and measurable protocol metrics are key to reducing costs and enhancing trust within the ecosystem.