Coinbase Lays Out Post-Quantum Needs for Bitcoin Custody

Coinbase says Bitcoin custody must prepare for future quantum threats by identifying vulnerable cryptographic keys and developing migration plans to quantum-resistant signatures. The concern is prospective: current quantum computers cannot break Bitcoin’s cryptography, but exposed public keys could become a risk if quantum capabilities advance. Coinbase emphasizes coordinated protocol changes and clear recovery paths so users can move funds safely. The key implication is that Bitcoin’s long-term security depends on planning upgrades well before quantum attacks become practical.