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Google Quantum Error Milestone

Google Demonstrates a Quantum Error Breakthrough; the Bitcoin-Breaking Threshold Stays Far Off

Verified · 16 Oct 2026BitcoinOct 16, 2026

Experts are sharply divided over how urgently AI and quantum advances threaten existing blockchain wallet cryptography.

Google reported in Science a 40-fold cut in “magic state” errors on its Willow chip — the special resource states that can consume most of a quantum computer’s capacity. The gap to code-breaking stands: 54 qubits were used, against an estimated ~500,000 to break Bitcoin’s cryptography, and the error rate remains about a million times short. Decrypt’s own verdict: nobody is draining wallets with this.

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