A future quantum attack on widely used cryptography may need a smaller quantum computer than previously thought

Verdict: ACT

A new Google-led study suggests that some cryptographic keys could be vulnerable with fewer qubits than earlier estimates assumed; Current quantum computers still cannot carry out the attack, but the security risk may become practical sooner than expected — making migration planning more urgent now.

Reviewed, edited and approved by Joerg Germann, Editor · Editorial method

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Holdings disclosure: Holdings confirmed 5 October 2026: the editor personally holds shares in IONQ, IQMX, NVDA, PSQL, QBTS, QUBT, RGTI, and XNDU.TO. Backloop Technology holds none. These holdings did not determine selection or the readiness judgment. About this report.

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