Galaxy Digital Launches $5 Million Initiative to Shield Bitcoin From Quantum Computing Threats

Galaxy Digital has committed up to $5 million in funding to support open-source developers working on quantum-resistant defenses for Bitcoin. The initiative, dubbed the Bitcoin Quantum Readiness Initiative, aims to prepare the network for the eventual emergence of quantum computers capable of breaking current cryptographic standards.

Alongside the financial commitment, Galaxy Digital has established a specialized quantum advisory council. The council features prominent academic and scientific figures, including Barry Sanders, the scientific director of Quantum City at the University of Calgary; Eran Tromer, a computer science professor at Boston University; and Damien Bérubé, an MIT Sea Grant Knauss fellow.

The newly announced grants will target several critical areas of development. These include funding for quantum-resistant protocol upgrade proposals, post-quantum cryptography research, novel Bitcoin signature schemes, migration tools for wallets and custodians, and comprehensive formal security audits.

The push for quantum readiness comes amid growing concerns over the vulnerability of existing digital assets. According to data from blockchain analytics firm Glassnode, approximately 30% of the circulating Bitcoin supply could be exposed to theft or compromise if a cryptographically relevant quantum computer is developed.

This vulnerable supply is split into two categories. Glassnode classifies roughly 10% of the total supply as “structurally unsafe” due to legacy output types that expose public keys. Another 20% is deemed “operationally unsafe” because of poor address or private key management practices, such as address reuse, which reveals the public key associated with a transaction.

While the threat is widely acknowledged, experts remain divided on the timeline for when quantum computers will pose a practical danger to blockchain networks. Some industry figures argue that the danger is decades away. In late 2025, Blockstream CEO Adam Back suggested that Bitcoin faces no immediate quantum threat for at least 20 to 40 years, asserting that this timeline provides the developer community with more than enough time to implement necessary upgrades.

Others advocate for a much faster response. A report from wealth management firm Bernstein suggested a significantly tighter window, warning that the Bitcoin network has only about three to five years to successfully implement post-quantum security upgrades before risks become critical.

Global regulatory and scientific bodies have already begun laying the groundwork for this transition. In August 2024, the U.S. Department of Commerce’s National Institute of Standards and Technology (NIST) finalized its first three post-quantum cryptography standards. These standards, which cover key establishment and digital signatures, are designed to withstand attacks from both classical and quantum computers and are expected to serve as the foundation for future security upgrades across various digital sectors.

Efforts to integrate these defenses into Bitcoin are already underway within the research community. In December 2025, Blockstream Research published a proposal outlining a hash-based signature scheme as a viable pathway to secure the network. The proposed framework would phase out Bitcoin’s current Elliptic Curve Digital Signature Algorithm (ECDSA) and Schnorr signatures, replacing them with a system whose security relies entirely on cryptographic hash functions, which are inherently more resilient to quantum decryption.