Ethereum Makes Progress Toward Quantum Resilience
Ethereum has achieved 20% quantum resilience, according to researcher Antonio Sanso.

- Ethereum is 20% quantum-resilient, says Antonio Sanso.
- Progress is part of a long-term cryptography upgrade.
- Quantum resistance is crucial for blockchain security.
Ethereum, the second-largest blockchain platform by market cap, is quietly advancing its defense against a futuristic threat—quantum computers. According to cryptography researcher Antonio Sanso from the Ethereum Foundation, the network is already 20% of the way toward quantum resilience.
Quantum resilience refers to the ability of a blockchain to withstand attacks from quantum computers. These super-powerful machines could eventually break traditional cryptographic systems used to secure today’s blockchain networks. Ethereum’s partial transition toward quantum-resistant technology marks a vital step in securing its long-term future.
What 20% Quantum Resilience Means
Sanso’s comment highlights Ethereum’s ongoing work in upgrading its cryptographic foundations. While the network is still largely reliant on current cryptographic standards, about 20% of Ethereum’s systems are now based on or compatible with quantum-resistant algorithms.
This progress includes updates to specific smart contract components and signature schemes that can withstand quantum attacks. However, Sanso clarifies that full quantum resistance will take time and requires community-wide coordination and adoption.
Why Quantum Resistance Matters
Quantum computers are still in early development, but when fully operational, they could pose a serious risk to the cryptography that protects blockchains. With Ethereum planning to serve as a decentralized platform for decades, building quantum resilience is essential.
The Ethereum Foundation and its research team are taking this risk seriously, working on proactive solutions long before quantum computers become mainstream. This shows a strong commitment to maintaining Ethereum’s security and reliability in the long run.
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