According to Cointelegraph, Ethereum merger architect Justin Drake stated that the cost of attacking Bitcoin is lower than that of Ethereum, estimated at around $10 billion. The security of Ethereum relies on the community's social and economic coordination mechanisms.
Ethereum's PoS mechanism allows for the identification and punishment of attackers in the event of a 51% attack, while Bitcoin's PoW mechanism lacks this feature. P2P.org researcher Pavel Yashin stated that if centralization is detected, the community can resolve it through a new fork. The computational and energy demands of Bitcoin make attacks less likely, while Ethereum's PoS increases economic and governance barriers.
