Yu Xian, founder of SlowMist, has called on DeFi projects to enhance their security protocols by conducting quarterly on-chain and off-chain security drills. Highlighting the threats posed by AI-skilled hackers and social engineering organizations, Yu Xian emphasized the importance of using AI to identify vulnerabilities in code and DevOps processes. He recommended that projects engage in penetration testing with firms like SlowMist or SEAL to stay ahead of potential threats.