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Why Ethereum Is Racing Ahead of Bitcoin on Quantum Security
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Ethereum is moving faster than Bitcoin to prepare for quantum computing, and researchers say that urgency is driven by risk exposure.
While Bitcoin leaders have largely downplayed the threat, Ethereum co-founder Vitalik Buterin has warned there’s a 20% chance quantum computers could break cryptography as early as 2030. Most Ether and all of Solana are currently vulnerable to such attacks, compared with a smaller portion of Bitcoin held in older addresses.
Ethereum’s solution is more complex, involving post-quantum signatures, account abstraction and zero-knowledge proofs to manage significantly larger cryptographic signatures. Researchers are also working on emergency upgrade plans that would allow ETH holders to prove ownership and migrate funds in the event of an early quantum breakthrough.
According to Sanso, Lean Ethereum — a broader redesign aimed at speed, simplicity and decentralization — is expected to be completed between 2028 and 2032, with quantum resistance built in from the ground up.
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Worked on year 2000 bug a few years. So much waste of time. Think this also waste but lets see
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The 'Quantum Threat' is one of those things people ignore until it's too late, so it's a massive relief to see Vitalik and the Ethereum devs already building 'Lean Ethereum' for the 2028-2032 window. Since our UDS tokens and Zombie NFTs live on this tech, Ethereum's move toward post-quantum signatures is basically an insurance policy for our digital property. If Solana and older BTC addresses are more vulnerable, do you think we'll see a massive 'flight to safety' where projects migrate to ETH-based L2s specifically for this protection? Also, would the Undeads team need to issue a manual migration for our NFTs, or will 'Account Abstraction' handle it in the background?
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The 'Quantum Threat' is one of those things people ignore until it's too late, so it's a massive relief to see Vitalik and the Ethereum devs already building 'Lean Ethereum' for the 2028-2032 window. Since our UDS tokens and Zombie NFTs live on this tech, Ethereum's move toward post-quantum signatures is basically an insurance policy for our digital property. If Solana and older BTC addresses are more vulnerable, do you think we'll see a massive 'flight to safety' where projects migrate to ETH-based L2s specifically for this protection? Also, would the Undeads team need to issue a manual migration for our NFTs, or will 'Account Abstraction' handle it in the background?
@MoTaw This is the right way to look at the 2026-2028 window. While some call it 'the Ozempic era' for Ethereum (as it leans out the protocol), the real win is exactly what you mentioned: Quantum Agility.
Ethereum has a massive advantage over older chains because of Account Abstraction (ERC-4337). Unlike Bitcoin, where a hard fork is a massive governance headache, ETH can essentially let us 'upgrade' our wallets to quantum-resistant signatures (like Winternitz or lattice-based schemes) without moving the assets. It’s less of a manual migration and more of a 'security patch' for your smart account. I definitely see a 'flight to safety' happening as L2s like Optimism and Arbitrum start baked-in PQ protections by default.
