According to Blockstream CEO Adam Back, the impact of quantum computing on the Bitcoin network is a theoretical threat, but not an immediate concern. Back, a pioneer in Bitcoin's history due to his work in cryptography dating back to the 1990s, emphasized the need for the industry to prepare for the potential risks. In a recent interview with Bloomberg, he stated that while the threat of quantum computing is real, current hardware lacks the necessary error correction capabilities, making it a long-term rather than near-term risk. Back's argument is supported by two recent papers, which highlight the limitations of current quantum computing technology.
Rather than dismissing the threat, Back stressed the importance of timing the response correctly, suggesting that the industry should prepare Bitcoin for a potential migration to quantum-resistant formats, allowing for a decade-long transition period. This timeline aligns with the ongoing development and implementation of post-quantum cryptography, particularly after the standardization of guidelines by NIST in late 2024.
Back also noted that research and deployment efforts are already underway, with a dedicated team working on publishing papers and implementing solutions, such as the Liquid network. The main challenge for the industry is to coordinate a gradual and orderly migration, rather than reacting to a sudden breakthrough, to mitigate the potential risks before they become urgent.