Quantum Computing Threat to Crypto on the Horizon, Coinbase Advisory Board Warns

A newly released report, commissioned by Coinbase, cautions that while quantum computing does not currently pose an immediate threat to cryptocurrency, the industry must start preparing for the potential risks it may pose in the future. The report, compiled by an independent advisory board comprising prominent cryptographers and academics, emphasizes that the development of a fault-tolerant quantum computer capable of breaking widely used encryption is becoming increasingly plausible. As a result, the industry must begin taking steps to mitigate this risk. The report notes that current quantum machines are not yet powerful enough to crack the cryptography underpinning major cryptocurrencies such as Bitcoin and Ethereum. However, the authors stress that complacency is not an option, as the timeline for the development of a large-scale, fault-tolerant quantum computer is uncertain. Estimates suggest that such a computer could be built anywhere from a few years to a decade or more from now. The report highlights the need for the industry to migrate to quantum-resistant cryptography, with the US National Institute of Standards and Technology (NIST) recommending that this transition be completed by 2035. However, the report suggests that this timeline may be overly optimistic. The transition to quantum-resistant cryptography will not be straightforward, as it will require significant changes to blockchains, wallets, and exchanges. Some assets may be more vulnerable to quantum computing threats than others, with Bitcoin wallets that have already revealed their public keys being potential targets. The report outlines multiple transition strategies, including hybrid systems that combine existing cryptography with post-quantum updates, and recommends that the industry adopt flexible approaches that avoid sacrificing current security or performance while enabling rapid upgrades in the future.