Noma Security

Hardening enterprise AI agents against attack.

Noma Security is an AI agent security platform focused on hardening enterprise AI deployments against threats such as prompt injection, data leakage, and unauthorized agent actions. It’s designed for enterprises deploying AI agents in production who need protection against the new categories of attack surface agents introduce. The company raised $100M specifically aimed at securing what it describes as the “agentic AI attack surface,” reflecting a thesis that agent security requires distinct tooling from traditional application security. Its focus is narrowly on agent-specific threats rather than general AI governance.

Compliance

ISO 27001 SOC 2

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Key Features

Prompt injection defense — Detects and blocks attempts to manipulate agent behavior through malicious input.
Data leakage prevention — Monitors agent outputs and actions to prevent unintended exposure of sensitive data.
Unauthorized action detection — Flags or blocks agent actions that fall outside expected or approved behavior.
Agentic attack surface focus — Purpose-built for the specific security risks introduced by autonomous AI agents, rather than general application security.

Use Cases

For enterprises deploying production agents — A company rolling out customer-facing or internal AI agents uses Noma to protect against prompt injection attacks before they cause harm.
For security teams managing agent sprawl — A security team monitors multiple deployed agents for unauthorized or unexpected actions across the organization.