TLDR
Coinbase is developing a post-quantum custody system to prepare for future cryptographic threats.
The exchange plans to launch an automated post-quantum signing pipeline within the next year.
Coinbase said its current key management system protects approximately 99.9% of custodied assets.
The company formed an Independent Advisory Board on Quantum Computing and blockchain earlier this year.
Coinbase is working with Bitcoin Core developers, cryptographers, and researchers on migration strategies.
Coinbase is expanding its work on post-quantum security as it prepares for a future where quantum computers could challenge Bitcoin’s current cryptography. The company said the risk is not immediate, but preparing early is necessary because upgrading decentralized systems and moving millions of users would require careful coordination. Coinbase also confirmed that it is working with developers and researchers while supporting broader Bitcoin security efforts through industry partnerships.
Coinbase Builds Post-Quantum Custody System
Coinbase said it is developing a post-quantum custody system that will allow customers to move to stronger cryptographic protections once blockchain networks adopt new standards. The company explained that its current key management system already protects about 99.9% of the assets it holds in custody.
The exchange said its Independent Advisory Board on Quantum Computing and Blockchain will deliver an automated post-quantum signing pipeline within the next year. The system will use secure enclaves and threshold cryptography to support future blockchain upgrades.
Coinbase said, “A large-scale quantum computer capable of breaking current cryptography will eventually be built,” adding that preparation should begin “not when it’s urgent.”
Bitcoin Developers Join Quantum Security Effort
Coinbase said it is bringing together Bitcoin Core developers, cryptographers, and security researchers to discuss migration strategies for a post-quantum future. The company plans to continue holding these discussions as work on new security standards progresses.
The exchange is also a founding member of the Bitcoin Security Consortium alongside BlackRock, Fidelity Digital Assets, Block, and other industry participants. The group has committed funding and engineering support for open-source Bitcoin security projects, including proposals such as BIP-360.
Coinbase said, “Preparing Bitcoin for a post-quantum world is one of the most consequential and complex challenges the protocol has ever faced.”
The crypto industry has monitored quantum computing for years, although experts say practical risks remain distant. Quantum computers are still experimental and continue to face technical limits before they can perform large-scale cryptographic attacks.
Interest in post-quantum security increased after Google researchers reported that future advances could sharply reduce the time needed to break existing cryptography. While some researchers consider those concerns premature, others have already started testing quantum-resistant signatures on blockchain sidechains.
