MarketsBlock Cuts Half Workforce 4000 Layoffs Dorsey Says Most Will FollowCNN Business·high signalXBlueskyLinkedInCopy linkBlock laid off 4000+ citing AI. Dorsey: most companies will follow within a year. Stock soared 24%.SourceSource pageCNN Business↳ Follow the threadStack layer / Threat patternHiddenLayer Raised $100M for Runtime AI Security After 10x ARR GrowthTechCrunchPolicy dependency / Stack layerCROSS-CATEGORY: Four Unrelated Vendors Shipped Agent Authorization Control Planes Inside 48 HoursJetStream (corroborated by Genesys Xperience 2026 coverage, aiagentstore.ai and Hacker News Show HN)Stack layer / ContrastProptech Funding Consolidated Into AI Underwriting and Operations While Generic Real Estate Software StarvedCrunchbase NewsPolicy dependency / Stack layerFour advisories land on Databricks' Omnigent meta-harness, one critical, all reported by an autonomous security agentGitHub Security AdvisoriesStack layer / ContrastSMELT Loops the Middle Half of an MoE Transformer Twice and Saves 6.8-18% of Training FLOPsarXiv 2609.01343Stack layer / Update threadTip: one paragraph cuts Fable 5.1's unrequested fixes and surplus test files with no measured loss in task successAnthropicStack layer / Update threadZuckerberg says Muse Spark open weights are coming, without naming a model or a dater/LocalLLaMA, corroborated by The Register (2026-09-02)Policy dependency / Stack layerTyped Provenance Guardrails Block All 19 Unsafe Releases From a Persistent Agent's Autobiographical MemoryarXiv 2609.02127