A recent report by Galaxy Digital says that the risk that quantum computing could disrupt Bitcoin is real, but so is the role of network security.
Industry research frames the issue as a long-term technology and governance problem rather than an emerging problem, where developers are already building tools that can reshape the way networks are earning trillions of dollars.
At the heart of anxiety is a simple concept. Bitcoin relies on cryptographic signatures to verify ownership of funds. Those signatures, based on elliptic curve cryptography, are considered secure against older computers.
How Quantum Computing Could Destroy Bitcoin
Advanced quantum mechanics can eliminate that thoughtallowing an attacker to obtain the private key from the public and spend money without permission.
The event has a name within the industry: “Q-day,” a moment that matters such as a computer it becomes possible. The timing remains uncertain. Estimates range from years to decades, and there is no consensus among experts. The report emphasizes that real uncertainty is the problem. Bitcoin’s structure means that upgrades take time, often measured in years, not months.
However, the risk is different. Bitcoin information is not disclosed today.
Wallets only reveal their public keys when funds are spent, meaning that funds that remain untouched behind active addresses remain secure.
The risk appears in two main cases: coins whose keys are already visible on the chain, and coins that are in circulation during trading.
What Bitcoin is really at risk
Galaxy estimates that millions of bitcoins could fall into the first category, including the money associated with the network’s initial transactions and long-lived wallets.
These coins, which are often associated with early adopters and even the famous creator Satoshi Nakamoto, present a unique challenge. If the potential for mass destruction is reached before defensive measures are deployed, such attacks may become a major target.
The consequences go beyond the individual loss. The sudden opening of the near-term supply can ripple through the markets, putting a risk on prices and, by extension, on the mining incentives themselves. strengthening the security of Bitcoin. The report classifies this as a systemic risk, not a technical error.
However, the tone of the research is measured. Instead of showing alarms, it shows the amount of work that is aimed at network maintenance. Among the popular ideas is a new sales method known as Pay-to-Merkle-Root, has been explained in Bitcoin Improvement Proposal 360.
This design removes the most visible areas by removing the public keys that are always visible, reducing the attack surface for long-term threats.
Some ideas take a broader approach. One concept, known as the “Hourglass,” attempts to deal with the fallout from risky investments by limiting how much they can be used in extreme situations. The goal is not to prevent supply, but to slow it down, giving the market time to absorb the potential.
There is also a path to new forms of cryptography. Hash-based signatures, such as SPHINCS+, have emerged as candidates for the post-quantum future. These systems rely on mathematical concepts different from those used today and are considered by some researchers as a very conservative foundation.
Post-Quantum cryptography brings commerce
The tradeoff is performance. Big signals can increase the size of the product and disrupt the network.
Similarly, manufacturers are reviewing contingency plans. One proposal introduces a self-build-and-disclose mechanism that would protect transactions even though the volume of transactions is occurring before the new cryptography. Another line of research looks at anonymous credentials to allow users to verify ownership of funds without revealing information.
In addition, these efforts demonstrate sustained protection. There is no single fix that solves the problem. In fact, the process is similar to the use of tools, protections that are designed for different exposure levels and different speeds.
The most difficult question may not be skill. Bitcoin has no central authority to dictate transactions. Any change requires cooperation between developers, miners, exchanges, and users. Previous changes, including major upgrades like SegWit and Taproot, took years to roll out and often caused significant controversy.
Quantum computing can be quite complex. Other proposals touch on more complex issues, including whether funds that fail to migrate to safe havens should lose money. Such a view raises philosophical questions about the property rights and cooperation of the groups involved in the network.
Even so, the report marks a major departure from past debates. Quantum risk is external. It does not divide the community over financial or competing visions for the future of Bitcoin. Instead, it presents a shared risk.
Everyone involved, from long-term users to operational staff, has an incentive to maintain network security.
In the end, the report suggests that the outcome will depend less on what kind of computers arrive and more on whether permanent networks can be integrated in time.
The answer, like Bitcoin’s history, will emerge through gradual acceptance rather than sudden change.
