Vitalik Buterin: Proof-of-Stake Is More Secure and Resilient Than Proof-of-Work

TLDR: Proof-of-Stake requires acquiring over $80 billion in ETH to mount a successful attack on the Ethereum network. Ethereum’s slashing mechanism automatically burns the coins of validators who sign two conflicting messages. If one-third of validators censor the chain, a community-coordinated soft fork can restore honest operations. Proof-of-stake security scales with network value, making Ethereum [...]

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