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AI Security

Pillar Platform

by Pillar Security

Discovers and red-teams AI agents, then enforces runtime guardrails across the AI workforce.

Pillar Platform Overview

What it does

Pillar Security is an AI agent security platform that gives enterprises one place to discover, govern, and protect AI agents across their lifecycle. It works across four functions, discovery and posture, red teaming, runtime guardrails, and governance, so the same risks found in testing are enforced in production. The platform targets agent-specific threats such as prompt injection, data leakage, and unsafe tool use.

How it works

Pillar catalogs agents, models, prompts, tools, and Model Context Protocol (MCP) servers through agentless connections and surfaces shadow AI. Its RedGraph engine maps agents, tools, and permissions as nodes and edges to expose attack paths, and multi-turn adversarial testing probes agents for prompt injection and jailbreaks before release. At runtime, adaptive guardrails calibrated to each agent's business role block unsafe actions, while taint analysis traces sensitive data from source to destination to stop unauthorized egress. Audit logs feed Security Information and Event Management (SIEM) platforms, and compliance reporting maps findings to frameworks including the EU AI Act and ISO 42001.

Credentials and traction

Pillar Security holds a SOC 2 Type II report. Gartner named it a 2026 Cool Vendor in AI Software Security and a Representative Vendor in the 2026 Market Guide for Guardian Agents. Frost & Sullivan gave it the 2025 Competitive Strategy Leadership Award for the global generative AI security market, and CRN listed it among the 10 hottest AI security startups of 2026. Customers include Eleos, Tavily, SimilarWeb, and AvidXChange, spanning enterprises deploying agentic AI.

Key Capabilities

AI Security Posture Management (AISPM)
AI Red Teaming
LLM Security
AI Usage Control

At a glance

Deployment
Cloud
Compliance
ISO 27001 · SOC 2 Type II

Info last updated on October 9, 2026

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