Crypto Industry Warned of Looming Quantum Computing Threat, Needs Proactive Plan

A newly released report, commissioned by Coinbase, cautions the crypto industry against the potential risks posed by quantum computing, stressing that while it may not pose an immediate threat, proactive measures must be taken to mitigate its impact. The report, compiled by a team of renowned cryptographers and academics, highlights the growing plausibility of a fault-tolerant quantum computer that could compromise the security of widely used encryption methods. Consequently, the industry is advised to initiate preparations without delay. Recent concerns regarding quantum risk have become more mainstream, with Google researchers suggesting that a sufficiently advanced quantum computer could potentially break Bitcoin's cryptography. In response, major crypto ecosystems have begun developing strategies to address this threat, such as the Ethereum Foundation's proposal for quantum-resistant digital signatures and Solana's experimentation with quantum-resistant wallet designs. Although current quantum machines are not yet powerful enough to crack the cryptography underpinning Bitcoin, Ethereum, and other networks, the report warns against complacency, citing the uncertain timeline for the emergence of a large-scale, fault-tolerant quantum computer. The U.S. National Institute of Standards and Technology recommends migrating to quantum-resistant cryptography by 2035, a deadline that may prove overly optimistic. The report emphasizes that waiting for the threat to become urgent is not a viable strategy, as transitions across blockchains, wallets, and exchanges could take years to execute safely. Certain assets may be more vulnerable to quantum attacks than others, with Bitcoin wallets that have already revealed their public keys being potential targets. Fortunately, quantum-resistant cryptography already exists and is being standardized by NIST. However, the transition to this new cryptography will not be straightforward, as post-quantum digital signatures can be significantly larger than current ones, potentially leading to increased blockchain data costs and reduced throughput. The report outlines multiple transition strategies, including hybrid systems that combine existing cryptography with post-quantum updates, and recommends flexible approaches that balance current security and performance with the need for rapid upgrades in the future.