HiddenLayer

HiddenLayer is the leading independent provider of security for AI models and assets, and one of the two origin stories converging on the AI-agent-security cluster. Where agent-native platforms like Noma and Zenity started at the agent layer and reached down to models, HiddenLayer started at the model layer and reached up to agents. Its AISec Platform secures AI across the full lifecycle from training to production: Model Scanner inspects 35+ model formats for supply-chain threats such as malware, backdoors, trojans, tampering, and serialization exploits (the research team has disclosed 48+ CVEs in ML frameworks and holds 25+ patents in adversarial detection); AI Detection and Response (AIDR) non-invasively monitors, detects, and responds to adversarial attacks, prompt injection, and model evasion against GenAI and traditional ML in production; and Model Genealogy plus an AI Bill of Materials (AIBOM) deliver observability, governance, and policy-driven enforcement with white-glove policy recommendations. With AISec Platform 2.0 and its 2026 agentic update, HiddenLayer extended AI Runtime Security to secure how agents behave and act, giving security teams visibility into how agents execute and the ability to detect and stop prompt injection, malicious tool calls, and data exfiltration in multi-step autonomous workflows, starting with agentic runtime visibility and expanding to full threat-hunting and enforcement. Because it operates on model artifacts and inference behavior without accessing weights, training data, or prompts, it deploys turnkey across diverse and regulated environments, including government.