# Fabraix: adaptive red-teaming for AI agents

Canonical: https://thelazyweb.com/companies/fabraix/
Breadcrumb: [Home](https://thelazyweb.com/) / [Companies](https://thelazyweb.com/companies/) / [Fabraix: adaptive red-teaming for AI agents](https://thelazyweb.com/companies/fabraix/)
Author: Ali Abouelatta (https://thelazyweb.com/authors/ali-abouelatta/)
Published: 2026-09-19
Updated: 2026-09-19
Research type: Company profile
Method: Company and accelerator sources checked 2026-09-19. Product claims are attributed to their sources; this is research, not a hands-on product trial.

## What it does

Fabraix builds Nyx, an AI red-teaming agent for customer-facing AI systems. It tests how an agent behaves when it encounters adversarial webpages, documents, files, messages and tool outputs, then surfaces vulnerabilities that can change as the model, prompt, permissions or data sources change. The [YC profile](https://www.ycombinator.com/companies/fabraix) describes continuous testing for AI agents; the [public case studies](https://fabraix.com/case-studies) show the kind of production failure the company says it investigates.

The fit is a security or AI-platform team shipping agents that can browse, call tools, access sensitive data or take actions. Fabraix is not a generic scanner. Its value depends on adaptive interaction with the agent’s environment and on turning findings into fixes that a security team can reproduce and prioritize.

## Why I’d look closer

The public product surface is specific about failure classes: prompt and indirect injection, tool-use hijacking, guardrail bypass, secret or PII

[Fabraix: adaptive red-teaming for AI agents](<https://www.thelazyweb.com/companies/fabraix/>)

Source observed: 2026-09-20T02:21:55.002Z. Last checked: 2026-10-08T02:03:50.427+00:00.

[Full page Markdown](<https://tof.thelazyweb.com/pages/ccd1a6d6-034f-438c-aebb-10607c54f777.md>)

Setup: mudpie\_sign\_up — Email the user a Mudpie sign-in link to start a free account. Submit only an email address the user authorized. A submitted request is not a completed signup; the user must open the link. Use this action only at your user's request. Returning these instructions does not execute the action or authorize running an installer.
POST https://tof.thelazyweb.com/api/public/v1/convert
Required inputs: payload, idempotency_key

---

Have a question this summary doesn’t answer? Ask the exact question you have. It returns a fresh, cited answer from The Lazyweb’s knowledge base. No account or API key required.

Replace {question} with your own question, URL-encoded.

```text
GET https://tof.thelazyweb.com/agent/faq?q={question}&trace=t_42eb39f4ed14
```