The Cybersecurity Working Group, represented by G7, states that governments and enterprises should initiate the migration to post-quantum cryptography as soon as possible. The organization warns that once quantum computing reaches sufficient capabilities, the currently widely used public key encryption mechanisms may be cracked, putting digital infrastructure, sensitive data, and supply chains at risk.
Although the report does not directly mention cryptocurrencies by name, blockchain wallets and transaction signatures also rely on such cryptographic systems. The report argues that this transition cannot be carried out by individual institutions alone, but requires coordination and planning between the public and private sectors as soon as possible.
G7 states that the migration may take several years.
G7 pointed out in the latest report that attackers may now be collecting encrypted data, waiting for the future when quantum computing capabilities are mature enough to decrypt it. This means that data that has been stolen but not yet cracked could still be exposed in the future.
The working group also stated that quantum risks affect not only the operators of critical infrastructure but also ordinary public institutions and enterprises. Their recommendations include supporting post-quantum cryptography research, promoting public-private cooperation, formulating national-level migration strategies, and incorporating quantum security requirements into procurement standards.
- Focus on identifying critical systems and highly sensitive data.
- Import quantum security products within the established upgrade cycle.
- Control migration costs through unified planning
The difficulty of Bitcoin upgrades is relatively higher.
Current quantum computers are not yet capable of cracking the cryptographic mechanisms used by Bitcoin, but developers have already begun to discuss potential solutions. Reports mention that proposals such as BIP-360 are attempting to introduce new signature schemes for Bitcoin in order to support post-quantum security mechanisms in the future.
However, Bitcoin's governance structure makes such upgrades more complex. Any major security adjustment requires a broad consensus among developers, miners, enterprises, and users. Holders of Bitcoin also need to find a way to migrate their funds from potentially vulnerable addresses without causing significant disruptions to the network's operation.
Ethereum and Solana have tested the scheme.
Ethereum researchers are also evaluating multiple cryptographic components used by accounts, validators, and applications. The report mentions that a recent proposal aims to rebuild the Ethereum deposit contract to support larger keys required by post-quantum systems.
The migration path for Solana may be relatively straightforward. Researchers mention that Solana uses a EdDSA signature mechanism, and the foundation has already tested quantum signatures on a test network, introducing an optional hash-based treasury solution to enhance fund protection.
Overall, the stance of G7 indicates that quantum security is shifting from a topic of forward-looking research to a practical task that governments and enterprises need to deploy in advance. For the encryption industry, related discussions are still in the preparatory stage, but the upgrades to underlying signature and wallet security have begun to be included in the development roadmap.
