Rapid progress in quantum computing is turning a once-distant possibility into a concrete challenge for the cryptography that underpins blockchains. Recent research from Google’s Quantum AI group found that the resources and timeline required for a quantum computer capable enough of breaking the elliptic-curve cryptography securing Bitcoin and other blockchains, is compressing. Coinbase’s quantum advisory board has also voiced that while no such machine exists today, the time to begin migrating to post‑quantum cryptography is now. As this risk moves closer to reality, developers, network participants, investors and ... (full story)