X @Wu Blockchain

Ethereum co-founder Vitalik Buterin warned that a blockchain’s core security property is that even a 51% attack cannot make an invalid block valid, meaning colluding validators can’t steal users’ assets. However, he noted this protection doesn’t extend off-chain—if 51% of validators collude in external trust scenarios, users have no recourse.https://t.co/qVVuqGsH9C ...