European financial regulators, including the European Banking Authority, the European Insurance and Occupational Pensions Authority, and the European Securities and Markets Authority, have warned that advancements in quantum computing could threaten the cryptographic security of blockchains. This warning was issued on Wednesday in a joint risk assessment update. According to experts from Google Quantum AI, who conducted a more detailed assessment, breaking the cryptography used in many cryptocurrencies may require more than 20 times fewer physical qubits than previously estimated. It is important to note that a computer capable of such an attack does not currently exist.
The main concern for cryptocurrency holders is that in the future, a quantum computer could derive a private key from a public one and use it to authorize transactions. In February, Jameson Lopp and five of his co-developers proposed a phased-out transition from current signatures in the Bitcoin network, limiting how un-migrated funds can be spent five years after the proposal's activation. However, this proposal has not yet been accepted. Additionally, the Ethereum Foundation plans to make the platform resistant to quantum attacks across all levels– in execution, consensus, and data layers– by December 2029.
This statement from regulators is important for the cryptocurrency market as it highlights the need for innovations in security amidst the rapid development of quantum technologies. Representatives of the regulators are calling for the development of new approaches and standards that can help protect cryptocurrency transactions from potential threats associated with quantum computing. This also underscores the necessity for developers to participate in creating secure systems that can withstand new challenges. Thus, understanding the potential risks associated with quantum computing becomes key to ensuring the reliability of future digital financial systems.
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