Coinbase Outlines How Bitcoin Should Prepare for Quantum Threat

Coinbase published a blog post with seven points on protecting Bitcoin from quantum computers: separating the coin container from the signature scheme, a staged transition with 1-of-2 keys, MPC compatibility, and evaluation of ML-DSA, SLH-DSA, FN-DSA and SHRINCS. Its quantum advisory board estimates about 7 million BTC are vulnerable, including 1.7 million in the oldest address type.

• Coinbase proposes separating the coin container from the signature scheme for post-quantum swaps
• Staged transition: 1-of-2 with classical or post-quantum key and MPC compatibility
• About 7 million BTC are vulnerable, including 1.7 million in the oldest address type
• Coinbase custodies roughly 5% of all bitcoin in existence