# SHA-256 Articles associés

Bitcoin’s Quantum Risk Is Smaller Than Feared, Researcher Says

A recent analysis indicates that Bitcoin's vulnerability to quantum computing attacks is less severe than commonly perceived. While concerns persist about future quantum machines breaking cryptographic protections, the immediate risk is limited. Reports highlight that only approximately 10,230 BTC, valued at several hundred million dollars, are held in addresses with exposed public keys, making them the most susceptible targets. These are primarily in mid-to-large-sized wallets, many dating back to Bitcoin's early days. Current quantum hardware remains insufficient for such an attack, operating at just over 100 qubits, whereas millions of stable, error-corrected qubits would be required. Experts like Andreas Antonopoulos and Adam Back emphasize the need for proactive preparation rather than panic. They recommend developing upgrade paths, discouraging key reuse in wallets, and testing migration procedures to ensure a smooth transition if quantum risks materialize in the future.

bitcoinist02/10 00:01