According to CoinMeta, Ethereum co-founder Vitalik Buterin stated at the opening ceremony on November 3, 2026, in Mumbai Devcon, that the security of hardware wallets cannot rely solely on trust; it also requires openness and verifiability. He pointed out that users should be able to confirm that their devices are not being monitored and that hardware wallets are not equipped with SIM cards that could lead to the leakage of private keys. Therefore, more open and verifiable chips are needed. He emphasized that proving one's credibility should not come at the cost of disclosing all information, and zero-knowledge proofs can help balance privacy and security.