Adam Back, CEO of Blockstream, has played down the immediate threat of quantum computing to the Bitcoin network, but highlighted the importance of preparation. As a pioneering figure in Bitcoin's history, with a background in cryptography dating back to the 1990s, Back argued in a Bloomberg interview that while quantum risk is theoretically real, it is not yet a practical concern. He noted that current quantum hardware lacks error correction, a point reinforced by recent research papers. Back emphasized that the key issue is not dismissing the threat, but rather responding at the right time.
He suggested that preparing Bitcoin and providing users with the option to migrate their keys to a quantum-resistant format over the next decade is a prudent approach. This timeline aligns with the development of post-quantum cryptography, which is transitioning from theoretical to practical implementation. Back also highlighted ongoing research and deployment efforts across the ecosystem, citing Blockstream's Liquid network as a testing ground. The industry's challenge lies in coordinating a gradual and orderly migration before the quantum threat becomes pressing.