Vitalik Buterin proposed using AI-assisted formal verification to improve blockchain security. Formal verification mathematically proves software correctness to prevent vulnerabilities. Current blockchain systems face security risks from smart contract bugs. AI could automate parts of the verification process for complex systems. The approach aims to reduce exploits in decentralized applications. Buterin's suggestion addresses growing concerns about DeFi hacks. The method would apply to smart contracts and cryptographic protocols. No timeline was given for implementation of this technology.