Vitalik Buterin on Quantum Computing and Ethereum Security

December 1, 2025

, By Cointelegraph

Vitalik Buterin on Quantum Computing and Ethereum Security

Blockchain

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Key takeaways

Buterin sees a nontrivial 20% chance that quantum computers could break current cryptography before 2030, and he argues that Ethereum should begin preparing for that possibility.
A key risk involves ECDSA. Once a public key is visible onchain, a future quantum computer could, in theory, use it to recover the corresponding private key.
Buterin’s quantum emergency plan involves rolling back blocks, freezing EOAs and moving funds into quantum-resistant smart contract wallets.
Mitigation means smart contract wallets, NIST-approved…

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Cointelegraph

Vitalik Buterin on Quantum Computing and Ethereum Security

December 1, 2025

, Published By Cointelegraph

Blockchain

Key takeaways

Buterin sees a nontrivial 20% chance that quantum computers could break current cryptography before 2030, and he argues that Ethereum should begin preparing for that possibility.
A key risk involves ECDSA. Once a public key is visible onchain, a future quantum computer could, in theory, use it to recover the corresponding private key.
Buterin’s quantum emergency plan involves rolling back blocks, freezing EOAs and moving funds into quantum-resistant smart contract wallets.
Mitigation means smart contract wallets, NIST-approved…

Source link