Galaxy Commits $5 Million to Bitcoin Quantum Defense

Grants will fund protocol and migration infrastructure

Galaxy will distribute the funding according to defined development milestones rather than providing full awards upfront. The structure is intended to connect payments to measurable technical progress across research, implementation and testing.

Eligible work will include Bitcoin transaction designs that can resist attacks from sufficiently advanced quantum computers. Grants may also support post-quantum signature systems tailored to Bitcoin’s architecture and the operational constraints of its network.

Wallet migration tools will be another priority. Those systems would be designed to help users move funds from addresses that could eventually become vulnerable into address structures protected by newer cryptographic methods.

Institutional infrastructure will also be covered. Exchanges, custodians and large asset holders could require specialized systems to migrate funds while maintaining withdrawal controls, cold-storage procedures, multisignature arrangements, custody policies, regulatory processes and audit requirements.

Security audits will examine whether proposed post-quantum systems introduce implementation flaws, performance problems or new attack surfaces. New cryptographic designs could solve one category of risk while creating others if they are deployed without adequate testing.

Post-quantum signature schemes may require larger signatures, additional computation or different security assumptions than Bitcoin’s current system. Those differences could affect transaction fees, block-space use, verification speed and node performance.

Galaxy’s funding scope therefore extends beyond identifying a theoretically secure algorithm. A viable transition would also require wallets, exchanges, custodians, miners, node operators and users to adopt the new system without disrupting access to funds.

Bitcoin’s current security is not under immediate threat

Bitcoin relies on elliptic curve cryptography to allow users to prove ownership and authorize transactions without revealing their private keys. Conventional computers cannot practically break those protections within a useful timeframe.

A sufficiently powerful quantum computer could theoretically derive a private key from exposed public-key information and authorize transfers without the owner’s consent. No cryptographically relevant quantum computer capable of carrying out such an attack currently exists.

Galaxy did not provide a definitive date for when such a machine could emerge. The company said the development timeline is uncertain but that preparation should begin early because substantial Bitcoin upgrades can require extended research, consensus-building, implementation, testing and user migration.

The central risk is therefore not an active attack against Bitcoin today. It is whether the network can design, approve and execute a secure transition before quantum computers become capable of exploiting existing signatures.

Bitcoin’s decentralized governance makes that process more complicated. No single company or administrator can replace the network’s cryptographic system unilaterally.

Any major transition would require coordination among developers, miners, node operators, wallet providers, exchanges, custodians, institutional investors and individual holders. Agreement would also be needed on how older coins and addresses should be handled.

A post-quantum transition could be substantially more complex than previous upgrades such as Taproot because it may affect transaction formats, signature sizes, wallet software and address management. It would also need to establish a safe process for moving coins held under older cryptographic conditions.

Waiting until quantum systems can already defeat existing signatures could create a race between attackers attempting to extract private keys and holders attempting to migrate funds. Early development would allow competing approaches to be tested and audited before the ecosystem faces emergency conditions.

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Potential exposure reaches millions of Bitcoin

Research cited in the information estimated that approximately 6.9 million BTC could face potential exposure if quantum computers become capable of defeating Bitcoin’s cryptography.

COIN360 data placed the Bitcoin price at about $66,800 at the time referenced, giving those holdings an estimated value of roughly $461 billion.

The estimate does not mean those coins are currently compromised or certain to be stolen. It represents Bitcoin believed to face elevated exposure under a future quantum-attack scenario because of the cryptographic conditions associated with the affected addresses.

Potential consequences would extend beyond direct theft. An approaching quantum threat could force large-scale wallet migrations, disrupt custody operations, pressure liquidity and create uncertainty for institutional and retail holders.

Advisory council will oversee technical priorities

Galaxy formed a Quantum Advisory Council to evaluate grant proposals, guide its research agenda and advise the company on Bitcoin and institutional preparedness.

The inaugural members are Barry Sanders, Professor and Scientific Director of Quantum City at the University of Calgary; Damien Bérubé, MIT Sea Grant Knauss Fellow; and Eran Tromer, Professor of Computer Science at Boston University.

The council will provide specialist oversight across quantum computing and cryptography. Its role includes assessing whether proposed projects are technically credible, practical for Bitcoin and sufficiently rigorous to merit funding.

Galaxy’s internal research team will also publish continuing analysis on quantum-computing risks, progress toward cryptographically relevant machines, technical defenses, migration standards and implications for institutional investors.

The research will also address policy questions and information relevant to developers and infrastructure providers. Galaxy said the intended audience includes institutional investors, policymakers and the Bitcoin development community.

Galaxy invited other institutions and Bitcoin stakeholders to participate by co-funding grants, contributing research, supporting audits, developing migration tools and helping accelerate adoption of quantum-resistant standards.

The request for outside participation positions the initial commitment as a starting point for a broader industry effort rather than a complete funding solution for the network’s eventual transition.

Governments and crypto firms are preparing early

The National Institute of Standards and Technology finalized its first post-quantum cryptography standards in 2024, providing approved approaches intended to remain secure against future quantum attacks.

A U.S. executive order established a 2031 deadline for federal agencies to prepare for quantum attacks against existing cryptographic systems.

President Donald Trump also signed two executive orders directing the United States to pursue development of a large-scale quantum computer and strengthen federal protections against quantum-enabled attacks.

The U.S. Commerce Department signed letters of intent proposing more than $2 billion in awards to nine quantum-computing companies developing advanced machines.

Those systems could eventually affect cryptography used by Bitcoin, Ethereum, internet infrastructure and government systems if they become powerful enough to defeat widely used public-key protections.

Other digital-asset companies have begun preparing for the same risk. Coinbase established an independent advisory council on quantum computing and blockchain in January 2026.

Coinbase released the council’s first position paper in April 2026. The 51-page paper concluded that quantum computers do not pose an immediate blockchain threat but said preparations should begin because migration to post-quantum cryptography could take years.

Strategy announced plans for a Bitcoin Security Program during its fourth-quarter earnings call in February 2026.

Bitcoin developers are also considering protocol-level approaches through BIP-360 and BIP-361. Technical work has therefore begun, but no universally accepted migration plan has been designed, approved and deployed.

Ethereum and XRP Ledger are conducting similar preparations, showing that the issue applies broadly to blockchain systems that rely on public-key cryptography.

Galaxy’s program does not claim that Bitcoin is currently unsafe or establish when existing protections could become vulnerable. The initiative is focused on building and testing defenses before a technically capable quantum computer emerges.