Quantum Threat: France and the G7 Call for Immediate Action

Under the French presidency of the G7, ANSSI, which leads the G7 cybersecurity working group, has just published a call to action on post-quantum cryptography with its partners. The quantum threat is now considered a short-term risk, and both public and private organizations are urged to prepare their migration immediately. The article Quantum Threat: France and the G7 Call for Immediate Action appeared first on Cryptoast.

ANSSI, in its capacity as leader of the G7 cybersecurity working group, has officially issued a call for international mobilization regarding post-quantum cryptography. While quantum computing remains an emerging technology, its ability to break current encryption protocols is now seen as a major strategic risk by world powers. This initiative, building on the work initiated under the Canadian presidency in 2025, highlights the urgency of a coordinated transition to protect critical infrastructure against threats that are drawing closer.

The heart of the problem lies in the vulnerability of current protection systems to the unprecedented computing power of future quantum processors. Experts are particularly concerned about the "harvest now, decrypt later" strategy, where malicious actors capture secure data streams today in the hope of decrypting them once the appropriate technologies become available. This threat weighs heavily on sensitive information, such as government records or industrial secrets, which require guaranteed confidentiality for several decades.

For companies, and more broadly for the digital ecosystem, this call necessitates an overhaul of security architectures. ANSSI recommends the adoption of post-quantum cryptography (PQC) standards recently finalized by NIST. The recommendation is clear: it is better to anticipate a gradual and controlled migration than to undergo an upgrade forced by technological urgency. This strategic shift involves not only budget investments but also a rethinking of internal governance and an acceleration of cryptographic agility within organizations.

The impact of this paradigm shift is particularly significant for the digital asset and blockchain sector. The majority of decentralized networks, relying on elliptic curves (ECDSA), find themselves on the front lines of the quantum threat. While technical solutions, such as BIP-360 for Bitcoin, are already the subject of intense debate among developer communities, the G7's message confirms that resilience in this new computing era has become a prerequisite for technological longevity and investor confidence.