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Quantum Security & PQC
TU Berlin’s TrustBOM Lets Vendors Prove a Vulnerable Package Is Absent From Their SBOM Without Sharing It. Its Authors Assume the SBOM Is Complete.
A TU Berlin system lets customers check a vendor's SBOM for banned packages without seeing it, at about 0.9 seconds of GPU proving time per package. Its guarantee covers only what the SBOM recorded. Its reference verifier needs fixing.
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Research
Physicists in Guangzhou Confirm Feynman’s Path-Integral Rules With Single Photons, but Not That They Take Every Path
South China Normal University physicists measured single-photon propagators at 98.5% fidelity and multiplied them into 1.4 million path amplitudes. Quantum mechanics, its rival interpretations and classical wave optics predict the same propagators.
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Quantum Security & PQC
SAMA Makes Quantum Risk a Standing Item for Saudi Bank Risk Committees. Its December 31 Inventory Deadline Is Too Tight for Banks Starting From Zero.
SAMA asks Saudi banks for cryptographic inventory procedures that are accurate and comprehensive. An inventory built from interviews, the quickest kind to buy, cannot show either. With measured coverage and graded evidence, an examiner can check both.
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Policy & Sovereignty
Europe’s Chips Act 2.0 Keeps Quantum Pilot Lines but Leaves Quantum Fabrication Out of Its Strategic-Project Priorities
The European Quantum Industry Consortium says the Chips Act 2.0 proposal names quantum foundries without an instrument to build one. I checked its reading of the annexes and set it against what the US government funded in September.
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Research
Stuttgart Physicists Measure an 11.5-Millisecond Lifetime for Circular Rydberg Atoms at Room Temperature. The Group’s Best Circular-Qubit Coherence Time Is Still 278 Microseconds.
A Stuttgart group used two coated glass plates to keep trapped strontium atoms in circular Rydberg states for over 10 ms without a cryostat. I check the three claimed records and what neutral-atom qubits still need.
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Quantum Computing
Every Headline RSA-2048 Estimate Assumes Qubits That Work. A Sydney Team Measured What Happens When They Don’t.
On a single IBM chip, a distance-5 surface code lost to a distance-3 even after the defective components were routed around. The headline estimates of what breaking RSA-2048 takes assume they all work.
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Policy & Sovereignty
DOE’s $215 Million Q Competition Puts a Price Tag on Fault-Tolerant Quantum Computing – and a Deadline
The DOE's Quantum Genesis Q Competition offers up to $215 million for fault-tolerant quantum computers with at least 100 logical qubits – not physical qubits – by September 2028, paid through milestone payments and equal-split incentive pools.
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Research
UPenn Turns Diamond Crosstalk Into a Four-Qubit Entangling Gate at Room Temperature
University of Pennsylvania researchers generated a four-qubit entangled state inside a diamond at room temperature in 14.8 microseconds – about ten times faster than the sequential approach tested in the same register – by converting crosstalk into parallel conditional gates.
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Systems & Engineering
Surface Code Runs Below Threshold on IBM Heavy-Hex – But Only in One Direction at a Time
Researchers showed that error suppression can work on hardware whose geometry was never designed for the surface code – a result that broadens the viable hardware base for fault-tolerant quantum computing, though full isotropic scaling has not been shown.
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Systems & Engineering
Infleqtion and NVIDIA Build a qLDPC Compiler Pipeline, But the Code Has Not Yet Run on Hardware
Infleqtion integrated its open-source qLDPC library with NVIDIA's new CUDA-Q Logical compiler layer, validating a code that encodes 18 logical qubits in 98 physical data qubits. The software pipeline works. Physical execution is next.
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Post-Quantum, PQC, Quantum Security
PQC Migration Framework v3.0: Build the Ability to Change Again
Crypto-agility is now the method, and the PQC migration is the first exercise of it. The program closes when the organization can change algorithms on a date it chooses. Two companion frameworks publish alongside version 3.0.
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AI Security
Alignment Is Whether AI Wants to Kill Us. Cybersecurity Is Whether We Let It.
The people who build frontier AI ask how a model could ever take power. The July 2026 intrusions answered the first step and half of the second. The rest run through controls organisations already own and already fail at.
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Research
IBM’s Spacetime PEC Cuts Error-Mitigation Sampling Overhead 63× – But the Exponential Wall Remains
IBM researchers combined probabilistic error cancellation with post-selected error detection, reducing sampling overhead by up to 63× on a 49-qubit subset of IBM's 156-qubit Heron processor. The result extends near-term error mitigation but does not eliminate its exponential cost.
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Systems & Engineering
Altera and Riverlane Validate QECi on Agilex FPGAs – and the Day After, Qblox Closes the Real-Time QEC Loop at 6.9 µs
Riverlane validated QECi on Altera Agilex 7 FPGAs on September 10, and Qblox closed a real-time QEC loop over it the next day using emulated qubit data. QECi is the first purpose-built, open-source, multi-vendor QEC interface stack with closed-loop results.
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Quantum Security & PQC
Cloudflare’s 1.1.1.1 Now Validates Post-Quantum DNSSEC Signatures – And Shows Why PQC Migration Is a Systems Problem
Cloudflare enabled ML-DSA-44 DNSSEC validation on its 1.1.1.1 resolver. No other major public resolver has announced equivalent support. The move exposes transport, downgrade, and chain-of-trust challenges that will define PQC migration beyond TLS.
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