Over 35% of Bitcoin Supply Faces Potential Quantum Risk, New Data Shows

Glassnode data shows about 7.12 million Bitcoin, or 35.4% of the total supply, have public keys already exposed on the blockchain, which could theoretically be vulnerable to future quantum computing attacks. Most holders can migrate to safer address types in minutes, but coins attributed to Satoshi Nakamoto may never be moved. The risk is long-dated rather than immediate, so traders are unlikely to reprice BTC on it now, though it adds a slow-burn technical debate over address hygiene.