Current Level 12: Today's Quantum Threat Level Explained
Today's Level: 12 / 100 Visible answer: No. Based on public evidence available on June 28, 2026, today's quantum computers cannot crack Bitcoin. Level 12 sits just above the Level 10 early logical-qubit milestone. It reflects meaningful public progress in quantum error correction and logical-qubit research, while remaining far below the reliable logical qubits, low error rates, and long circuit depths needed to threaten Bitcoin signatures. Quantum Threat Level: 12 / 100 Status: Low Bitcoin Status: Safe Main risk being monitored: future attacks against exposed ECDSA or Schnorr public keys,...
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