France to ANSSI-quit classical crypto by 2027 — Bitcoin's 7M vulnerable coins sweating in French

France's national cybersecurity agency ANSSI said Tuesday that it will stop certifying security products that lack quantum-resistant encryption beginning in 2027, advising companies to purchase only quantum-safe products by 2030. ANSSI Chief of Staff Samih Souissi announced the policy at the France Quantum 2026 Summit, according to Reuters. ANSSI certification is required for French government agencies and critical infrastructure operators, giving the decision the force of a phase-out for older cryptographic systems. "It's not only a technical issue," Souissi said. "It's a matter of governance, industrial planning, regulation, and sovereignty."

The move aligns France with the U.S. National Security Agency's CNSA 2.0 timeline, which requires all new national security system acquisitions to support approved quantum-resistant algorithms by Jan. 1, 2027, with noncompliant systems phased out by the end of 2030 and full migration completed by the end of 2031. "Two of the world's most demanding cryptographic certification authorities, serving two of the world's largest defense and government technology markets, have independently converged on the same year to make PQC a pass-fail requirement," said Marin Ivezic, founder of consulting firm Applied Quantum, in a LinkedIn post.

Quantum threats have become an increasing focus within the cryptocurrency industry. In May, data analytics platform Glassnode estimated that nearly 10% of Bitcoin's ($BTC) total supply, roughly 1.92 million BTC, is "structurally unsafe" in the event of a quantum computing breakthrough. In a separate estimate, quantum security firm Project Eleven said in May that a cryptographically relevant quantum computer could arrive as early as 2030, putting roughly 7 million Bitcoin at risk. Google set a 2029 deadline to transition its systems to post-quantum cryptography in March.

In April, Coinbase warned that proof-of-stake blockchains including Ethereum ($ETH) and Solana may face greater exposure to quantum computing due to the signature schemes validators use. Coinbase's quantum advisory council this week urged blockchain developers to begin preparing for a post-quantum future, including determining the fate of coins whose owners never migrate to quantum-safe addresses. Earlier this year, the Ethereum Foundation formed a dedicated post-quantum security team, formally elevating quantum resistance to a top priority for the network. The Stellar Development Foundation separately unveiled a three-stage roadmap to migrate the XLM network to quantum-safe cryptography, including a protocol upgrade that would allow users to add quantum-resistant signers without changing their wallet addresses. Some industry executives cautioned that the latest projections should not be read as a sign that a quantum crisis is imminent.