Vitalik: A 51% attack on Ethereum by Binance would ultimately fail Ethereum co-founder Vitalik Buterin @VitalikButerin said in an interview in Bangkok that even if Binance successfully launched a 51% attack on Ethereum, it would lose billions of dollars due to slashing penalties or minority soft forks leading to idleness penalties. He believes Ethereum's current security is excessive, with an attack cost as high as $48 billion. By moderately lowering the economic threshold and instead strengthening the robustness of the P2P network layer and consensus layer, Ethereum as a whole would become even more secure. Source: Vertigo Video