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Safeguarding cryptocurrency by disclosing quantum vulnerabilities responsibly

The latest research from Google

Mar 31, 2026

3/31/2026

Post-Quantum Cryptography Provides A Viable Defense But Migration Must Be Timely And Wallet Hygiene Actions Are Needed

Safeguarding cryptocurrency by disclosing quantum vulnerabilities responsibly · The latest research from Google

Science, Technology & Innovation · Mar 31, 2026

Google says post-quantum cryptography already offers a viable defense against quantum attacks on cryptocurrencies, but the real danger is slow migration—so immediate steps like wallet hardening, avoiding reuse of vulnerable addresses, and policies for dormant coins are urgently needed.


3/31/2026

Google Proposes Zero-Knowledge Verification Of Quantum Vulnerability Claims Without Sharing Circuits As A Responsible Disclosure Model

Safeguarding cryptocurrency by disclosing quantum vulnerabilities responsibly · The latest research from Google

Science, Technology & Innovation · Mar 31, 2026

Google proposes using zero-knowledge proofs to publicly substantiate quantum-attack resource estimates without releasing circuits, offering a middle path between no-disclosure and full-disclosure that could become a new standard for reporting quantum vulnerabilities in high-stakes, financially sensitive systems.


3/31/2026

Google Reduces Quantum Hardware Requirements To Break 256 Bit ECDLP And Accelerates Post Quantum Migration Timeline

Safeguarding cryptocurrency by disclosing quantum vulnerabilities responsibly · The latest research from Google

Science, Technology & Innovation · Mar 31, 2026

Google says improved fault-tolerant compilation of Shor’s algorithm reduces the quantum resources needed to break 256-bit ECC to two circuits (one <1,200 logical qubits & 90M Toffoli gates; another <1,450 logical qubits & 70M Toffoli gates) that could run in minutes on a machine with <500,000 physical qubits—about a 20× cut from prior estimates—meaning blockchain security must treat cryptographically relevant quantum computers as an engineering-scale threat requiring urgent post-quantum planning.


3/31/2026

Quantum Risk Communications In Crypto Should Be Treated As Market-Sensitive Security Disclosures

Safeguarding cryptocurrency by disclosing quantum vulnerabilities responsibly · The latest research from Google

Business, Finance & Industries · Mar 31, 2026

Google warns that in crypto, exaggerated or unsubstantiated claims about quantum attacks create a separate “confidence” attack surface—alongside real quantum capability—so stakeholders must treat quantum-risk communications as market-sensitive security disclosures and prioritize evidence quality.