Coinbase Council Warns 7 Million Bitcoin May Face Future Quantum Risk

Jun 12, 2026 - 16:30
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....

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