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Home/Bitcoin News/Ethereum’s Security Outshines Bitcoin Amid Increasing Concerns
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Ethereum’s Security Outshines Bitcoin Amid Increasing Concerns

Thane Morrison
Thane Morrison
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May 18, 2025
2 MIN READ
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Concerns rise over Bitcoin’s security budget as Ethereum’s PoS system offers more stability.

What to Know:
  • Security concerns over Bitcoin’s cost-effective attack vulnerability highlighted by experts.
  • Ethereum’s PoS system presents higher attack deterrents.
  • Bitcoin’s decreasing block rewards pose long-term security risks.

Ethereum researcher Justin Drake raises alarms about Bitcoin’s security while praising Ethereum’s robust defense.

Experts highlight Bitcoin’s vulnerability to potential 51% attacks, shifting focus to Ethereum’s security advantages.

Bitcoin’s Security Strain: Decreasing Block Rewards

Experts express growing concerns over Bitcoin’s security due to decreasing block rewards and rising transaction fee dependence. Ethereum’s proof-of-stake model demands higher capital, offering better protection against network attacks.

Justin Drake and Grant Hummer highlight Bitcoin’s attack vulnerability. They state Bitcoin’s attack cost could drop to $2 billion, whereas Ethereum requires around $45 billion for a similar threat.

Justin Drake, Ethereum Researcher, noted, “Launching a 51% attack on Bitcoin today could cost around $10 billion, whereas on Ethereum, given the number of staked Ether, the cost rises closer to $45 billion. The economics of attack are fundamentally less favorable for Ethereum.”

Ethereum’s PoS Model Enhances Network Security

The cryptocurrency community examines the potential risks associated with Bitcoin’s security. Debates center on possible security model revisions to enhance its protection against attacks.

The financial community observes Ethereum’s increased security resilience due to its PoS model, which requires significant funds for an attack, making it less susceptible compared to Bitcoin.

Bitcoin’s Decreasing Security: Historical Analysis

Historically, Bitcoin’s security relied on miner incentives, which diminish with halvings. No major attacks have succeeded, yet experts warn of increased risks due to lower entry costs over time.

Based on past trends, Ethereum’s model may prevent attacks due to costly staking needs. Analysts suggest Bitcoin might struggle to maintain security as block rewards continue declining.

Grant Hummer, Co-founder, Etherealize, remarked, “Bitcoin’s decreasing block rewards and reliance on transaction fees present a growing security concern. As block subsidies decrease, so does the security budget, possibly dropping the cost of a network takeover to $2 billion in the future.”

Disclaimer: The information on this website is for informational purposes only and does not constitute financial or investment advice. Cryptocurrency markets are volatile, and investing involves risk. Always do your own research and consult a financial advisor.

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