Google Quantum Advance Brings Bitcoin Security Threat Closer, Bitrue Says

By Public Technologies
  • Google's Willow quantum breakthrough narrows the timeline for threats to Bitcoin security, though current technology cannot break its cryptography.
  • Magic state cultivation reduced quantum errors 40-fold, achieving 99.99% logical fidelity for T-states.
  • A March 2026 Google Quantum AI white paper estimated breaking Bitcoin's elliptic curve cryptography would require fewer than 500,000 physical qubits.
  • The experiment used at most 54 of Willow's 105 qubits; breaking Bitcoin would require substantially lower error rates.


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