Analysts Warn Bitcoin Is Easier to Attack Than Ethereum

Ethereum's proof-of-stake design may offer it a stronger defense against attacks than Bitcoin's proof-of-work system, according to recent insights from leading researchers in the crypto space.

Justin Drake, a prominent Ethereum researcher, has drawn attention to the comparative costs of launching a 51% attack on both networks. Based on his analysis, compromising Bitcoin’s blockchain could theoretically cost around $10 billion—substantially less than the estimated $45 billion required to disrupt Ethereum, where the attack would require acquiring a majority of the staked ETH.

This difference, Drake suggests, gives Ethereum a superior long-term security posture, particularly as staking volume grows alongside the network.

His perspective aligns with that of Grant Hummer, co-founder of Etherealize, who also weighed in on the issue. Hummer warned that Bitcoin’s security budget is diminishing, making it increasingly vulnerable as block rewards decline.

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He projected that within the next decade, the cost of attacking the Bitcoin network could drop to as low as $2 billion—making such a breach far more feasible for a well-funded adversary.

Hummer emphasized that Ethereum’s more robust economic model and validator infrastructure offer greater protection for critical on-chain data. In his view, Ethereum is better positioned to serve as a decentralized store of value on the internet, thanks to its expanding validator set and high stake-backed security.

As concerns grow around Bitcoin’s long-term sustainability without rising transaction fees, Ethereum advocates argue that staking-based consensus is better suited to handle future network demands without compromising resilience.

Alexander Stefanov