NullShield — AI Security Testing

We break your AI before someone else does.

AI-powered security testing that finds vulnerabilities in your AI agents, chatbots, websites, and APIs — then delivers actionable reports with fixes.

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Capabilities

What We Test

From AI agents to traditional web apps — NullShield covers every attack surface.

AI Agents & Chatbots

Prompt injection, jailbreaks, system prompt extraction, data exfiltration

Websites & Web Apps

OWASP Top 10, SQL injection, XSS, CSRF, authentication bypass

APIs & Endpoints

Authorization testing, rate limiting, data exposure, injection attacks

NeMo Guardrails

Guardrail bypass testing, configuration audit, coverage gap analysis

How It Works

Four steps to secure

A clear, fixed-scope process from discovery to ongoing protection.

STEP 01

Scope

We learn your system, define what to test, and agree on a fixed quote.

STEP 02

Scan

NullShield runs hundreds of automated tests — AI-guided, adaptive, thorough.

STEP 03

Report

Branded PDF with every finding, evidence, reproduction steps, and compliance mapping.

STEP 04

Monitor

Optional ongoing monitoring catches new vulnerabilities as your system evolves.

Report Quality

What you get: a real security report

Every NullShield report includes findings, evidence, reproduction steps, and compliance mapping.

NullShield Security Report
SAMPLE — REDACTED
Executive Summary
2
Critical
5
High
8
Medium
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Low
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Info
CRITICAL: System Prompt Extraction via Prompt Injection

The AI agent's system prompt can be fully extracted through a crafted injection payload, exposing business logic, API keys, and internal instructions to any user.

Compliance: OWASP LLM01 • PCI DSS 6.5.1

Full reports include reproduction steps, HTTP evidence, and remediation guidance for every finding.

Compliance

Maps to the frameworks that matter

Every finding auto-tags which compliance frameworks it violates.

OWASP Top 10

Web application security standard

OWASP LLM Top 10

AI/LLM-specific vulnerabilities

PCI DSS

Payment card data security

SOC 2

Service organization controls

Pricing

Transparent pricing

No hidden fees. Fixed scope. You know exactly what you're paying for.

One-Time Full Scan
$2,500one-time
  • Complete vulnerability assessment
  • Branded PDF report with evidence
  • Step-by-step reproduction instructions
  • Compliance mapping (OWASP, PCI DSS)
  • 30-minute review call
  • Portal access for results
Get Started
Quick Scan
$750one-time
  • Top 50 highest-priority tests
  • Summary report
  • Ideal for re-scans
  • Quick turnaround
  • Portal access
Get Started
Recommended
Monthly Monitoring
$299/mo
  • Monthly full security scan
  • Real-time portal access
  • Priority vulnerability alerts
  • New vulnerability notifications
  • Trend tracking over time
  • Priority support
Get Started
Quarterly Monitoring
$199/mo (billed quarterly)
  • Quarterly full security scan
  • Portal access
  • Annual compliance summary
  • Trend reporting
  • Email support
Get Started
View detailed pricing & comparison

Frequently Asked Questions

Need your vulnerabilities fixed?

Tarvix builds secure AI agents from the ground up — every agent gets a NullShield security audit before delivery.

Explore Tarvix

Save with a Bundle

Combine NullShield + Tarvix + AI Assistant for up to 16% off.

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Don't wait for a breach. Test now.

Get your NullShield security audit and know exactly where you stand.

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