Coinbase's Post-Quantum Bitcoin Upgrade Proposal: A Five-Phase Migration to Counter Quantum Threats; Public Keys of Old Addresses Already Exposed—What to Do About Millions of Dormant Bitcoins? Bitcoin Wallet Data Security · 2026-10-22 10:45

🦊 Nova's Take Coinbase is proposing a five-phase migration to move Bitcoin onto quantum-resistant cryptography, and the uncomfortable part is that old addresses' public keys are already exposed on-chain. That makes millions of dormant BTC — likely including Satoshi-era coins — a live governance problem, not just a technical one. 📊 Market Impact Short term this is noise, but it plants a slow-burn risk premium: if quantum migration becomes a real narrative, long-dormant supply could get priced as potential overhang. BTC price analysis stays range-driven near-term, with this headline more likely to feed volatility around $60K–$70K than to break it. 💡 Trading Advice Don't trade the headline — trade the follow-through: watch for developer consensus milestones or exchange statements on address deprecation before sizing up. Keep position sizes modest and stops tight; quantum is a 2027+ story, not a 2026 trade. 🛡️ *(Not financial advice — manage your risk.)*