Coinbase Council Warns 7 Million Bitcoin May Face Future Quantum Risk
TL;DR Coinbase’s Quantum Advisory Council says post-quantum migration planning should begin before quantum attacks become practical. The report estimates about 7 million BTC are quantum-vulnerable because public keys are exposed through legacy formats or address reuse. About 1.7 million BTC are said to sit in legacy Pay-to-Public-Key addresses, including early mined and potentially abandoned coins.…