Are quantum computers a threat to Bitcoin?

Quantum computers have raised new questions about the security of Bitcoin and other crypto assets. Although the threat is not considered immediate, discussions are already underway about how Bitcoin can adapt through technical updates such as BIPs (Bitcoin Improvement Proposals).

What are quantum computers and how can they affect Bitcoin?

Quantum computers are a type of computer that, in theory, can solve certain problems significantly faster than traditional computers. This has brought increased attention to Bitcoin security, particularly after Google published research suggesting that some computations in the future may become more efficient than previously estimated.

Bitcoin relies on cryptography to protect transactions and ownership. If quantum computers eventually become sufficiently powerful, they could theoretically challenge parts of the security model used in the network. At present, however, this is not considered a direct threat, as the technology is still far from practical use at the scale that would be required.

How can Bitcoin be updated through BIPs?

Bitcoin evolves through so-called BIPs (Bitcoin Improvement Proposals), which are proposals for changes or improvements to the network. These can range from minor technical adjustments to more substantial updates to how Bitcoin functions.

If quantum computers become a more concrete threat in the future, this process provides a way for changes to be proposed and implemented. For example, this could involve introducing new types of cryptography better suited to a world where quantum computers exist.

The BIP process is open and based on collaboration between developers, researchers, and other participants in the ecosystem. This means that adaptations typically occur gradually and after careful review.

Development of quantum-resistant solutions

In parallel with the BIP process, technical development is ongoing across several parts of the ecosystem. Lightning Labs, for example, has presented a prototype aimed at enabling Bitcoin to be moved to addresses with improved protection against future quantum threats.

StarkWare also highlights STARKs, a type of cryptography often described as resistant to quantum computers. Such solutions are already used in certain blockchain-based systems and may, over time, become relevant in broader contexts.

Bitcoin is not alone in this challenge

The issue of quantum computers extends far beyond Bitcoin. The technology could, in theory, affect banks, government institutions, and other systems where encryption is used to protect information. As a result, the development of so-called post-quantum cryptography is taking place globally.

For crypto assets, this means that security considerations remain central, especially as new technologies continue to develop.

Quantum computers are often described as a potential future threat to Bitcoin, but at present the discussion is primarily about long-term preparedness. Through mechanisms such as BIPs and ongoing research into new cryptography, established processes exist to adapt the network over time.

Exposure through exchange-traded products

Investors have the option to invest securely in crypto assets via fully backed ETP:s through the Swedish company Virtune, whose products are listed on among others Xetra and Nasdaq Stockholm. These can be traded via several of the biggest traditional brokers.

Crypto investments are associated with high risk. Virtune does not provide investment advice. Investments are made at your own risk. Securities may increase or decrease in value, and there is no guarantee that you will recover your invested capital. Please read the prospectus, KID, terms at www.virtune.com.