August 7, 2026 — Did Amazon Just Find a Crack in Post-Quantum Crypto?
An AWS cryptographer's preliminary quantum algorithm takes aim at the lattice math behind post-quantum encryption, while IonQ's earnings spook investors, Rigetti banks a huge cash cushion, and a German startup claims a room-temperature diamond quantum computer.
Linked sources: Daniel R. Simon's Dihedral Coset Problem paper — IACR ePrint Archive
Amazon Researcher Claims Quantum Algorithm Could Challenge PQC Foundations — The Quantum Insider
IonQ 8-K SEC filing — StockTitan
Rigetti has $541 million to fund quantum R&D — Quantum Zeitgeist
Diamond-powered room-temperature quantum computer — Live…
The skinny
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