DeFiWarhol

Quantum computing and blockchain: the threat moved closer this year
The quantum risk to crypto has always been filed under "later." A Google Quantum AI paper from March 30 narrowed what "later" means.
→ What the paper found
Breaking secp256k1, the curve that locks Bitcoin and Ethereum wallets, takes under 1,200 logical qubits. On real hardware, that works out to under 500,000 physical qubits. About 20x less than the old estimate of ~9 million.
The paper came from Google, the Ethereum Foundation, and Stanford. They proved the number without releasing the actual attack.
Still, this is a calculat

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