Adam Back, CEO of Blockstream, has downplayed the immediate threat of quantum computing to the Bitcoin network, but emphasized the need for the industry to start preparing. As a pioneer in Bitcoin's history, known for his work in cryptography dating back to the 1990s, Back argued in a Bloomberg interview that while the quantum risk is theoretically real, it is not yet a practical concern. He pointed out that current quantum hardware lacks error correction, a notion supported by recent research papers that view quantum computing as a long-term rather than a near-term threat to cryptographic systems.
Back's main point was not to dismiss the threat but to stress the importance of timing the response correctly. He suggested that preparing Bitcoin and giving users the option to migrate their keys to a quantum-resistant format over the next decade is a prudent approach. This timeline aligns with the progress of post-quantum cryptography, which is transitioning from theoretical to practical implementation following the finalization of standards by NIST in late 2024.
Back highlighted that preparation is already underway across the ecosystem, with ongoing research and deployment, citing Blockstream's Liquid network as an early example. The challenge for the industry is to coordinate a gradual and orderly migration before the quantum threat becomes urgent.