CipherM Threat Clock — current public state of quantum hardware progress and CRQC (Cryptographically Relevant Quantum Computer) proximity. Sources cited per-entry where possible. Estimates are conservative and shift as new data lands. Re-publish weekly.
as of 2026-04-28 · re-published weekly · cite as: cipherm.io/threat-clock
Subjective probability that a Cryptographically Relevant Quantum Computer exists by year Y. Linear interpolation between knot points. Anchored on Global Risk Institute Quantum Threat Timeline Report 2023 (median expert estimate ~50% by 2034) and Mosca 2024 update.
superconducting transmon
Shipped
Roadmap
src: ibm.com/quantum/roadmap (public roadmap dated 2024-11)
superconducting
Shipped
src: blog.google/technology/research/google-willow-quantum-chip (2024-12)
trapped ion
Shipped
Roadmap
src: quantinuum.com/news (2024-2025 announcements)
trapped ion
Shipped
src: ionq.com/posts/ionq-roadmap
photonic
well-funded but less public validation than superconducting/ion-trap players
src: psiquantum.com (vendor materials)
topological (claimed)
Shipped
src: microsoft.com/azure/quantum (2025-02 announcement)
neutral atom
Shipped
rapid scaling potential; partnership with Microsoft announced 2024