Vitalik Buterin Redefines Crypto Security, Says “Perfect Security” Is Impossible
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Key Takeaways: Vitalik Buterin indicates that security and user experience are related closely based on its nature, therefore systems need to guarantee the operation in line with users’ needs. He points out that “perfect security” is unrealistic because human needs are too complicated for a completely correct encoding. He suggests some solutions such as trading stimulation, multisig wallets, spending limit and supplementary identification layers. Vitalik has given a new spin on crypto security, presenting it as bridging the difference between meaning and implementation in the form of a blockchain. His opinions triggered a wide discussion in the Ethereum community on wallet design and security levels of smart contracts. Read More: Vitalik Warns Prediction Markets Are ‘Cursed,’ Pushes Hedging to Replace Fiat Security Is About Intent, Not Just Code Beterin said that the core objective of security is to minimize the deviation between users’ intention and practical behaviors of the system. According to him, “user experience” is an integral part of security because both of them depend on whether the system can do correctly users’ expectations. How I think about “security”: The goal is to minimize the divergence between the user’s intent, and the actual behavior of the system. “User experience” can also be defined in this way. Thus, “user experience” and “security” are thus not separate fields. However, “security”… — vitalik.eth (@VitalikButerin) February 22, 2026 He explained that perfect protection is impossible. Not because machines are misguided, but because it is difficult to pinpoint the real meaning of what the folk are saying. Even a simple action like “send 1 ETH to Bob” carries hidden ambiguity. A public key may represent Bob, but users must still trust that the address truly belongs to him. Chain splits, wallet UI experience, and phishing threats are all increasing the threat gap. The deeper…
Filed under: News - @ February 23, 2026 1:31 pm