Coinbase Issues Warning About Quantum Computing Threats to Crypto Security
Coinbase (Nasdaq: COIN), a well-known cryptocurrency exchange, is proactively refining its custody frameworks and systems in anticipation of a future where advanced quantum computing could compromise the cryptographic methods that safeguard Bitcoin, Ethereum, and various other blockchain networks.
In a blog post on July 23, Coinbase’s Chief Information Security Officer, Jeff Lunglhofer, elaborated on the company’s strategy:
“It is inevitable that a large-scale quantum computer, capable of dismantling current cryptographic security, will be developed. While the timeline remains uncertain, our preparations must commence now, rather than waiting until an urgent situation arises.”
Coinbase has established an Independent Advisory Board focused on Quantum Computing and Blockchain, which expresses strong confidence that a viable quantum computer will eventually emerge. This board was created to evaluate the long-term quantum-related threats to digital assets based on the announcement from Coinbase.
“The cryptographic foundations protecting nearly all significant blockchains will be at risk once this capability arrives. Although the danger isn’t immediately pressing, the timeline for such advancements is genuinely unpredictable,” added Lunglhofer.
This alert does not imply that current quantum computers can breach the cryptography used in major blockchains. Instead, Coinbase emphasizes the immense time and effort required to upgrade global blockchain infrastructures, transition millions of users, and update vulnerable cryptographic methods, highlighting the importance of early preparations.
Shifts in Industry Standards are Underway
Coinbase’s proactive measures reflect broader initiatives in cybersecurity. In June 2026, the U.S. National Institute of Standards and Technology (NIST) released preliminary updates to federal post-quantum cryptography standards, incorporating newly accepted quantum-resistant algorithms for identity verification and authentication. This signifies that organizations should continue their transition towards post-quantum security.
The suggested updates expand upon NIST’s comprehensive effort to modernize cryptographic standards in light of advancements in quantum computing. These revisions aim to assist both federal entities and the private sector in implementing quantum-resistant technologies without sacrificing interoperability.
Coinbase’s Quantum-Safe Custody Development
Coinbase is in the process of creating PQ-CoreKMS, a post-quantum variant of its proprietary key management system, which currently secures about 99.9% of its held assets. Its current CoreKMS system utilizes multiparty computation (MPC) to distribute the control of private keys, preventing any single party from reconstructing a customer’s entire key.
Within the next year, Coinbase intends to launch an automated signing system that incorporates secure enclaves, secret sharing, and threshold cryptography, allowing compatibility with multiple post-quantum signature algorithms as they are integrated into blockchain networks. Over the ensuing two to three years, Coinbase’s researchers plan to further enhance MPC capabilities to include lattice-based and other potential post-quantum signing methods.
Simultaneously, the exchange is reviewing all cryptographic methods utilized across its infrastructure, including those that protect customer information and authentication processes. Coinbase aims to evaluate each system based on its significance, exposure, and ease of migration.
Collaboration Required for Bitcoin Security Enhancements
Coinbase is set to co-host a working session in August with Stanford University, bringing together Bitcoin Core developers, researchers, and cryptographers. This group will explore potential migration strategies and technical hurdles associated with transitioning Bitcoin to quantum-resistant security protocols.
The cryptocurrency platform is also a founding member of the Bitcoin Security Consortium, which includes industry giants like BlackRock, Fidelity Digital Assets, Block, Blockstream, and Strategy. This consortium was initiated with a $15 million investment aimed at aiding open-source developers in researching the long-term security of Bitcoin. Coinbase has committed to contributing to developers focusing on quantum-related security issues and deploying its engineers for open-source projects, including initiatives like BIP-360.
“No single entity can tackle this challenge in isolation. Collaboration among researchers, developers, protocols, and businesses is crucial,” concluded Lunglhofer, emphasizing that:
“The quantum future is on the horizon, and the time to start preparing is now.”