HiddenLayer

HiddenLayer is a cybersecurity tool. Enterprise AI security platform covering model discovery, supply chain scanning, runtime defense and continuous attack simulation. Agentless and model agnostic, aimed at CISOs and security teams protecting models, pipelines and agentic systems in production.

HiddenLayer is an AI security platform built for the risks that come with models, pipelines and agentic systems rather than for conventional software. Its core position is that AI threats differ enough from legacy attack patterns that retrofitted cybersecurity tools leave gaps, so the product addresses discovery, supply chain validation, runtime defense and adversarial testing as connected layers. The platform is organized around four pillars. AI Discovery builds a continuous inventory of models and workflows across an environment, including shadow AI deployments that teams did not formally register. AI Supply Chain Security validates model integrity before deployment, checking for malware, backdoors, vulnerabilities and unknown components. AI Runtime Security watches live traffic and behavior in production, aiming to detect and respond to attacks without degrading performance. AI Attack Simulation runs continuous adversarial testing so weaknesses surface before attackers find them. Use cases map onto the same stack. Model scanning covers pre-deployment inspection, red teaming provides ongoing adversarial evaluation, AI guardrails enforce policy-aligned behavior across applications and business units, and the agentic and MCP security line targets prompt injection, unsafe tool use and harmful autonomous actions. The vendor stresses that deployment is agentless and model agnostic, requires no training data, and does not demand access to weights, prompts or customer data, which matters for regulated industries hesitant to expose intellectual property to a security vendor. This is enterprise software aimed at CISOs, security engineering teams and AI platform owners at large organizations, not at individual developers or small teams. Compared with general cloud security suites that have added AI modules, HiddenLayer's differentiator is depth across the full AI lifecycle, from artifact scanning before release to behavioral monitoring after it. Buyers should expect a procurement and integration project rather than self-serve signup, and should confirm fit for their own model architectures during evaluation.