Experts Warn: Quantum Computing Threat to Crypto is Imminent, Preparation is Key

A newly released report, commissioned by Coinbase, serves as a warning to the crypto industry: while quantum computing does not currently pose an immediate threat, it is essential to start preparing for its potential impact. The report, authored by a panel of experts including renowned cryptographers and academics, stresses that today's blockchains remain secure but notes that the emergence of a 'fault-tolerant quantum computer' could potentially break widely used encryption. As concerns around quantum risk continue to grow, major crypto ecosystems are already exploring strategies to mitigate this threat, such as developing quantum-resistant wallet designs and proposing new types of digital signatures. The report cautions against complacency, emphasizing that the timeline for the development of a large-scale, fault-tolerant quantum computer is uncertain but 'clearly on the horizon.' With estimates suggesting that such a computer could be built anywhere from a few years to a decade or more, the report urges the industry to begin preparing for this eventuality, citing guidance from the U.S. National Institute of Standards and Technology (NIST) to migrate to quantum-resistant cryptography by 2035. However, the transition to quantum-resistant cryptography will not be straightforward, with potential increases in blockchain data costs and reductions in throughput. The report outlines multiple transition strategies, including hybrid systems that combine existing cryptography with post-quantum updates, and recommends flexible approaches that avoid sacrificing current security or performance while enabling a rapid upgrade later.