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Wu Blockchain· 2025-10-26 03:19
Blockchain Security - Ethereum co-founder Vitalik Buterin highlights a core blockchain security property: a 51% attack cannot validate an invalid block, preventing validators from stealing user assets [1] - The industry notes this 51% attack protection is limited to on-chain activities [1] Off-Chain Risks - The report warns that in external trust scenarios, collusion by 51% of validators leaves users without recourse [1]