// Hacker Noon · 15 April 2026

Google’s Quantum Bitcoin Threat Is Real, But Not Here Yet

A new Google Quantum AI paper shows that breaking Bitcoin's elliptic curve signatures could require fewer than 500,000 physical qubits; that is roughly a 20x reduction from prior estimates. It is a real scientific result. But no machine with even 1% of that capacity exists today, and the paper is a...

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