According to Blockstream CEO Adam Back, the impact of quantum computing on the Bitcoin network is a theoretical threat, but not an immediate concern. However, he emphasizes the importance of preparation. As a pioneering figure in Bitcoin's history, with a background in cryptography dating back to the 1990s, Back recently discussed his views with Bloomberg. He highlighted that current quantum hardware lacks error correction, aligning with recent research that suggests quantum computing poses a long-term rather than near-term risk to cryptographic systems.
Back's main point is not to dismiss the threat but to stress the need for timely preparation. He suggests that it is prudent to prepare Bitcoin for the potential threat and provide users with the option to transition their keys to a quantum-resistant format over the course of a decade. This timeline is in line with the ongoing development and implementation of post-quantum cryptography, particularly after the standardization by NIST in late 2024. Back also noted that research and deployment efforts are already underway across the ecosystem, with a dedicated team working on publishing papers and implementing solutions, such as Blockstream's Liquid network.
The challenge for the industry is to coordinate a gradual and orderly migration before the risk becomes critical.