Quantum Threat to Crypto Is Not Here Yet, but Coinbase Advisory Board Says the Time to Prepare Is Now

A recent report by Coinbase's advisory board reveals that quantum computers powerful enough to compromise current blockchain cryptography are not yet on the horizon, but the industry should start preparing for a post-quantum security transition nonetheless¹. The report highlights several challenges associated with migrating to post-quantum cryptography, including increased signature sizes, inefficient aggregate signatures, and potential impacts on blockchain performance and fees. Furthermore, the analysts note that dormant wallets pose complex governance questions. To address these concerns, the report recommends that blockchains and exchanges begin planning for a post-quantum future, emphasizing the need for proactive measures to ensure a seamless transition. The urgency to develop and implement post-quantum cryptography, such as lattice-based or code-based schemes, is increasing, making it essential for practitioners to prioritize planning and migration strategies to mitigate potential quantum threats, so the cryptocurrency industry can maintain its security and integrity in the face of emerging quantum capabilities.