This article was first published on The Bit Journal.
Bitcoin quantum computing risks have gone beyond the confines of academic halls of research. Coinbase’s Independent Advisory Board on Quantum Computing and Blockchain has released a new report examining one of the most controversial questions facing the crypto industry: what should happen to dormant Bitcoin and other crypto assets if quantum computers eventually break today’s encryption standards?
The report published on the 12th of June, doesn’t take a stance on a single solution. Instead, it lays out all the different ways of tackling the problem and gives the industry a push to start preparing now because moving an entire ecosystem like Bitcoin to quantum-resistant cryptography is a task that is going to take a long time, years even.
Why The Quantum Computing Risk Really Matters
There is a hypothetical future scenario where a powerful enough quantum computer could easily work out the private keys from a public address. Currently, that type of machine doesn’t exist yet, but the potential threat is still big enough to have blockchain networks thinking about their migration strategies.
Coinbase’s report says it is high time the industry got to work on it. The challenge becomes particularly complicated when it comes to lost or dormant coins.
Millions of Bitcoins have been sitting untouched for years and if quantum computers ever do gain the ability to recover those, then the network is going to have a lot of new coins entering circulation and that could in turn cause a host of economic and security problems.
The Argument For Burning Vulnerable Coins
One suggestion that has been proposed in Coinbase’s report is that the network should just set a firm deadline by which all users need to have moved their funds to a quantum-safe address. After that, no more old signatures would be accepted, which means that all those coins that haven’t been migrated wouldn’t be usable any more.
Supporters of this idea say it would help stop attackers getting their hands on old addresses and that would stop a lot of recovered Bitcoins suddenly hitting the market.
They also warn that nation-states or well-funded adversaries could target vulnerable wallets if quantum computing advances faster than expected.
Advocates believe the network should not bear the consequences of inactive holders failing to migrate.
The Case Against Burning Coins
Critics however see things very differently. For them, the idea of forcibly invalidating dormant assets is nothing short of a breach of one of Bitcoin’s fundamental principles, the right to property. For years, Bitcoin ownership has always been determined by the possession of private keys, not by deadlines imposed through protocol changes.
Opponents also point out a practical problem. Nobody can accurately determine whether coins are truly lost or simply being held by long-term investors. A network-level decision to burn unmigrated funds could affect legitimate owners who face technical or accessibility barriers.
For many Bitcoin supporters, the idea of creating a mechanism that lets the network confiscate coins even for the sake of security could lead to consequences that can be very hard to turn back.
Exploring Alternative Solutions
Realizing there are two sides to the argument, some researchers are looking at compromise options.
One idea is called the Hourglass Proposal. It would simply limit the amount of vulnerable coins that can move around during any given period which in turn would reduce the risk of a sudden supply shock.
Another proposal, BIP-361, looks at using zero-knowledge proofs to help users reclaim funds after legacy signatures are disabled.
The report also talks about PACTs, a system letting users make a commitment today to using quantum-safe transactions in the future by making use of Bitcoin’s existing time-stamping. This approach aims to balance off security with ownership rights, rather than taking a side.
Blockchain Networks Are Already Getting Ready
Just this week, the Stellar Development Foundation rolled out its Quantum Preparedness Plan, a three-stage roadmap designed to transition the network towards quantum-safe cryptography. What they’re aiming for is to allow all Stellar accounts to use quantum-resistant signers by the end of 2027, all the while keeping existing addresses and transaction histories intact.
Stellar points out that quantum threats aren’t unique to crypto. The same cryptographic systems protect banking infrastructure, internet communications, software authentication and countless other online services.
Conclusion
The immediate threat may still be theoretical but the governance issue is a real one.
The Coinbase advisory board’s number one recommendation is simple: start planning now. It argues that support for post-quantum signatures should be developed without tying it to the decision of what to do about abandoned coins. Waiting until a practical quantum threat emerges could leave networks scrambling to coordinate complex upgrades under pressure.
For Bitcoin, the technical solution may end up being easier than getting the community to agree on what to do. One of the toughest questions they have to answer is whether dormant coins should be protected, migrated, rate-limited, or just plain burned.
Glossary
ECDSA: Short for Elliptic Curve Digital Signature Algorithm; a cryptographic system which is currently used by Bitcoin.
Schnorr Signatures: Those are a type of signature scheme that’s been introduced to Bitcoin via the Taproot upgrade.
Post-Quantum Cryptography: This refers to cryptographic methods that are designed to resist attacks from quantum computers.
Zero-Knowledge Proof: This is a technique that lets you verify something without having to reveal the underlying information.
Quantum Computing: This is a type of computer that uses quantum mechanics to solve certain problems faster than a classical computer can.
Frequently Asked Questions About Bitcoin Quantum Computing Risks
What is the Bitcoin quantum computing risk all about?
It is the possibility that future quantum computers could break the cryptographic systems that currently keep Bitcoin wallets and transactions safe.
Is Bitcoin currently vulnerable to quantum computers?
No, experts say that as things stand, existing quantum computers aren’t powerful enough to break Bitcoin’s encryption.
Why is Coinbase pushing for the discussion to start now?
Because migrating large blockchain networks to quantum-resistant systems is going to take a long time, years of technical development and community discussion.
What are dormant Bitcoin coins?
They’re coins that haven’t moved in ages, often years, and may belong to people who lost their keys, people who are forgotten or just people who are long-term holders.
Which blockchain projects are already getting ready for quantum threats?
Stellar just launched its Quantum Preparedness Plan, with the aim of supporting quantum-safe signatures across the network by the end of 2027.
References
The price predictions and financial analysis presented on this website are for informational purposes only and do not constitute financial, investment, or trading advice. While we strive to provide accurate and up-to-date information, the volatile nature of cryptocurrency markets means that prices can fluctuate significantly and unpredictably.
You should conduct your own research and consult with a qualified financial advisor before making any investment decisions. The Bit Journal does not guarantee the accuracy, completeness, or reliability of any information provided in the price predictions, and we will not be held liable for any losses incurred as a result of relying on this information.
Investing in cryptocurrencies carries risks, including the risk of significant losses. Always invest responsibly and within your means.
For advertising inquiries, please email . [email protected] or Telegram
