Vitalik Buterin has highlighted formal verification as a pivotal advancement for Ethereum's software development. This method involves using languages like Lean to create mathematical proofs that can be automatically verified, enhancing security for complex technologies such as encrypted communication protocols, ZK-STARKs, and consensus algorithms. The integration of AI has further streamlined this process, allowing for the automatic generation of verification proofs and assembly code. Buterin emphasizes that formal verification's core value lies in its ability to separate secure core code from less secure components, enabling users to verify security proofs without reviewing the entire codebase. However, he cautions that formal verification is not a cure-all, as it cannot ensure alignment with human intent and has experienced verification failures. Despite these challenges, formal verification offers a promising path to bolstering network security amid the rise of AI-generated code.