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G7 central bank group warns quantum computing could strain finance security

G7 central bank group warns quantum computing could strain finance security

G7 central banks warned code-breaking quantum machines could emerge within 10 years, while G7 leaders at the Évian summit are set to discuss AI risks and opportunities in finance and stronger international coordination.

Fact Check
Both elements of the claim are corroborated. The G7 Central Bank Quantum Technologies Working Group report, publicized by official Banque de France and Bank of Canada releases, warns that quantum computing could challenge cryptographic security of payments and financial data; the QuantumInsider analysis confirms the specific characterization that experts see a 'non-negligible probability' of a cryptographically relevant (code-breaking) quantum computer emerging within 10 years. The CryptoBriefing report confirms G7 leaders at the Évian summit (June 15-17, 2026) are set to discuss AI risks and opportunities in finance with stronger international coordination. The phrasing 'could emerge within 10 years' accurately reflects a probabilistic warning rather than a certainty.
Summary

G7 central banks’ Quantum Technology Working Group said in its first public report that quantum computing could pose major risks to the global financial system and existing encryption, with code-breaking machines likely to emerge within 10 years. The group, formed in 2025 and led by the central banks of France and Canada, urged financial institutions to inventory cryptographic assets, transition toward post-quantum cryptography and strengthen coordination. Separately, G7 leaders at the Évian summit are set to discuss the opportunities and risks of artificial intelligence in finance, including potential effects on financial stability, innovation and governance.

Terms & Concepts
  • post-quantum cryptography: Encryption designed to remain secure against attacks from quantum computers.
  • quantum computing: Advanced computing technology that could eventually break some widely used encryption methods.
  • financial stability: The resilience of the financial system against shocks and disruptions.