Bitcoin Quantum Threat Inches Closer as IBM Claims 'Trusted Quantum Advantage'

IBM said it has demonstrated “trusted quantum advantage” using 70 logical qubits and a new error-correction technique, completing a calculation in about 15 minutes that it claims would be impractical for leading classical simulation methods. The result is an incremental but notable step in IBM’s fault-tolerant quantum roadmap, showing progress on verification and error reduction as the company targets larger systems by 2029. For markets, the headline is relevant mainly to the long-term quantum-computing race and to Bitcoin’s eventual security discussion. However, the article stresses that the hardware is still far below the threshold generally believed necessary to threaten Bitcoin’s cryptography, so near-term BTC risk remains unchanged.