Brian Armstrong says he will personally oversee Coinbase’s post-quantum Bitcoin work

Brian Armstrong said on April 2, 2026 that he will personally spend time on Bitcoin's quantum-resistance efforts and oversee Coinbase's post-quantum cryptography work. The move comes as late-2025 research from Google Quantum AI and Caltech modeled a hypothetical quantum system that could break Bitcoin encryption in under nine minutes, close to the network's 10-minute block interval. Coinbase is also pointing to the need for community consensus through the BIP process before any protocol-level upgrade can be adopted.