CoinVoice has recently learned that, according to a report from Cointelegraph, Ethereum researcher Justin Drake stated that initiating a 51% attack on Bitcoin is cheaper compared to Ethereum, costing about $10 billion. He pointed out that to gain control of the Ethereum chain, one needs to control over 50% of staked ETH, which currently is valued at nearly $44.8 billion, with the actual cost potentially being higher.
Drake emphasized that Ethereum's PoS mechanism has a social layer of defense that can identify and socially penalize attackers, while Bitcoin's PoW lacks this mechanism. Experts believe that while there are theoretical risks, the practical threshold for initiating a 51% attack is extremely high for both BTC and ETH. [Original link]