AgentsOpenAI Acquires Promptfoo — Agent Security Goes PlatformTechCrunch·high signalXBlueskyLinkedInCopy linkOpenAI acquired Promptfoo (valued M, 25% Fortune 500). Red-teaming, evaluation, compliance integrated into Frontier. Agent security consolidating into platform layers.SourceSource pageTechCrunch↳ Follow the threadShared entity / Policy dependency116 Companies Including Visa, Mastercard, Shopify, Capital One and GM Signed a Joint Call for AI Cyber DefenseCNBC (corroborated by CBS News and Slashdot; letter published 2026-08-27, coverage through 2026-08-28)Shared entity / Stack layerPromptfoo adds a Codex Security SDK provider and hardens its code-scan GitHub Action supply chainGitHubShared entity / Threat patternMeta's India and Southeast Asia VP Sandhya Devanathan Leaves for OpenAITechCrunchStack layer / Threat patternNvidia's $13B Hugging Face deal and Stripe's $7B OpenRouter buy make open-weight infrastructure the hot acquisition classTechCrunchShared entity / Stack layerCursor's CEO Answered the Cutoff With a Number: OpenAI Models Are About 5% of Cursor Trafficr/singularityShared entity / Threat patternOpenAI and Thailand's MHESI Launch an Eight-Week Accelerator for 10 StartupsOpenAI BlogShared entity / Threat patternOpenAI quietly merged a 'persistent' reasoning-effort value into Codex, then told Wired it has no plans to ship itGitHub (openai/codex)Threat pattern / Follow-up threadFelonyBench Hit the Hacker News Front Page Counting AI Agent Incidents, and Google Scores ZeroTechCrunch