Vitalik Buterin has highlighted the critical need for full-stack openness and verifiability across technology sectors as the internet increasingly integrates into daily life. In a recent post, Buterin emphasized that ensuring openness and user-verifiability in software, hardware, and biotechnology is essential to maintaining security and fairness. He warned that without these measures, data monopolies and trust crises could arise. Buterin called for a concerted effort to promote full-stack openness to foster a more secure, free, and inclusive digital society.