Capsule Security is a cybersecurity company focused on runtime security for AI agents. The platform continuously monitors AI agent behavior and intervenes in real time when anomalous or unsafe activity is detected, before actions are executed. The core product operates as an independent security layer that integrates without requiring code modifications, agent changes, or architectural redesign. It supports a broad range of AI agent environments including: - AI agent builder platforms (AWS Bedrock, Azure AI Foundry, GCP Vertex) - AI coding agents (Claude Code, Cursor, GitHub Copilot) - Enterprise AI agents (ChatGPT Enterprise, Microsoft Copilot Studio, Salesforce Agentforce) Key capabilities of the platform include: - Frictionless Discovery: agentless integration to automatically identify AI agents across environments - Agent Security Graph: maps relationships between agents, tools, data, and actions to reveal risky paths and control gaps - Deep Observability: real-time visibility into agent decisions, actions, and execution paths - Runtime Protection: enforces security and governance policies before agent actions are executed - Agent Identity Control: manages ownership, least-privilege access, and accountability across agent environments - Whitebox Red Teaming: proactively uncovers weaknesses in agent logic, prompts, and behaviors The platform detects threats such as prompt injection attacks, sensitive data (PII) exposure, unsafe tool usage, and unexpected action chains. Capsule Security raised $7M in funding and has published security research including CVEs related to Microsoft Copilot Studio and Salesforce Agentforce vulnerabilities.