Google Cuts the Qubits Needed to Break Ethereum by 20x, But There’s a Plan

Jun 15, 2026 - 06:45
Google Cuts the Qubits Needed to Break Ethereum by 20x, But There’s a Plan
A Google Quantum AI paper published in March 2026 cut the estimated hardware needed to break Ethereum’s account security by 20 times. The quantum threat moved from theoretical to scheduled, and across the blockchain industry, only one network is visibly preparing. Earlier research estimated that cracking the signature scheme protecting every Ethereum account would require...

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