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NVIDIA Vera Rubin NVL72 Delivers Leading Performance in MLPerf Inference v6.1 Debut
NVIDIA's Vera Rubin NVL72 debuts in MLPerf Inference v6.1 with up to 3.7x higher throughput than GB300 NVL72 and 99% scaling efficiency at 288 GPUs.
In its first MLPerf Inference preview submission, NVIDIA's Vera Rubin NVL72 achieved up to 3.7x higher throughput than GB300 NVL72 on Qwen3-VL and 2.5x on DeepSeek-R1. A 288-GPU GB300 NVL72 submission across four racks reached 99% scaling efficiency on the DeepSeek-R1 offline benchmark. Software optimizations delivered up to 1.6x gains over v6.0, leveraging TensorRT-LLM, vLLM, Dynamo, disaggregated serving, and NVFP4 precision.
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“We Think the Security Control Is Working” Is No Longer Good Enough
Opinion piece argues CISOs must replace point-in-time, sampling-based audits with continuous control monitoring to prove controls work in real time.
The article contends that annual, sampling-based compliance assessments no longer satisfy boards, customers, and regulators who demand live proof that security controls are working. It cites a 2025 Dell study where 69 percent of IT professionals said leadership overestimates cyber readiness, and notes NIST's 2024 CSF update added a Govern function emphasizing continuous, measurable outcomes. The author advocates continuous control monitoring of identity, cloud configuration drift, vulnerability remediation clocks, and vendor posture, feeding automated evidence into existing GRC systems.
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Root-Cause Attribution Is a Search Problem: Continual Search for Long-Horizon Agent Failures
Continual Search framework iteratively prompts LLM judges to keep searching agent execution logs, boosting long-horizon failure root-cause attribution accuracy.
The paper frames automated root-cause attribution (RCA) for long-horizon AI agent failures as a search problem, since relevant evidence is sparse and distributed across massive execution traces. The authors propose Continual Search, an iterative framework that nudges an LLM judge across successive turns to keep hunting unresolved diagnostic evidence instead of settling on an early plausible diagnosis. They introduce MegaRCA-Mix, a benchmark of 50 human-annotated failure trials on long-horizon, execution-heavy tasks. On MegaRCA-Mix, Continual Search improves GPT-5.5's F1 from 0.349 to 0.498 (over 40% gain), and lower-tier models can surpass higher-tier counterparts when search is effective.
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Variational Continuation for Double Pendulum Periodic Orbits
Researchers introduce a Hessian-based, integrator-free method using automatic differentiation to continue periodic orbits in the double pendulum, uncovering previously unreported orbit families.
A new arXiv paper presents a variational, Hessian-based framework for numerically continuing periodic orbits in dynamical systems, parametrizing candidate loops as Fourier series and minimizing deviation from the governing differential equations. Automatic differentiation replaces hand-derived Jacobians, and flat directions of the loss landscape guide the continuation search. The method is demonstrated on the double pendulum, mapping bifurcations along orbit families, including periodic orbits where neither pendulum mass is ever simultaneously at rest.
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CONTINUITY: Security-Context Contracts for Composable LLM Agent Controls
Researchers introduce CONTINUITY, a framework of assume-guarantee contracts that preserves LLM agent security context across components, verified across 2,560 attack instances.
The paper identifies security-context discontinuity, where individually sound controls drop, widen, or reinterpret security context as actions cross component boundaries, and proposes CONTINUITY, a framework of assume-guarantee contracts using signed root grants, provenance commitments, role-bound transition receipts, and effect-bound execution permits. It formalizes end-to-end consequence integrity, requiring every external effect to be backed by a valid authorization witness linking principal, task, provenance, and policy state. A reference verifier and cross-layer fault-injection suite covering 32 fault classes showed the full configuration committed no harmful external effect across 2,560 parameterized attack instances while completing all 700 benign tasks and escalating all 200 ambiguous cases.
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IAM Compliance Requirements and Best Practices
A guide maps IAM compliance requirements across SOX, PCI DSS, HIPAA, ISO 27001 and NIST 800-53, urging verified enforcement over documented policies.
The guide argues IAM compliance requires demonstrating that access controls are enforced at runtime, not merely documented, highlighting gaps between policy intent and application-layer execution. It maps recurring requirements across SOX ITGCs, PCI DSS v4.0, HIPAA, ISO/IEC 27001:2022, NIST SP 800-53 and GDPR, covering least privilege, separation of duties, access certification and audit trails. It recommends continuous, evidence-backed verification and application-layer telemetry instead of relying on identity provider logs or quarterly access reviews.
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Malspam Targeting Brazil Continues to Evolve
Brazilian malspam campaigns continue evolving, abusing Google URL shortener and Dropbox and using Squiblydoo plus DLL side-loading to deploy likely infostealing botnet malware.
A June 2017 Brazilian malspam campaign spoofed IPTU tax notification emails, using the recipient's address as the sender, and abused Google's URL shortener and Dropbox to deliver a zip containing a malicious Windows shortcut (.lnk) file. The LNK used the Squiblydoo technique (regsvr32.exe) to download and execute a scriptlet with elevated privileges, retrieving a signed G-Buster Browser Defense executable alongside a malicious fltLib.dll loaded via side-loading, likely an information-stealing botnet. Post-infection HTTP traffic exposed over 400 infected Windows hosts, mostly in Brazil, with 2,132 Banload-tagged samples observed in the first half of 2017.
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