Premium AI & Web Security Audit

Premium security audits for AI systems, websites, and APIs.

NullShield helps SMB teams understand real exposure across AI assistants, websites, APIs, and access-control flows, then gives them executive-ready reporting, technical remediation guidance, and a verification retest after fixes.

Attacker-realistic testingExecutive + technical reportingOne verification retest included
Why NullShield

Security testing that reflects how modern systems actually get attacked

NullShield is built for the overlap between AI behavior, web application risk, APIs, and business-critical workflows.

AI and web attack paths intersect now

Modern attack surfaces combine AI agents, websites, APIs, and operator workflows. NullShield tests the places where those systems actually fail together.

Finding count is not the deliverable

Automated testing is useful, but the real value is validated exploit paths, business impact, and a report your team can act on immediately.

Premium reporting shortens remediation time

Every engagement is designed to help founders, engineering leads, and operators understand what matters first and what to fix next.

What We Test

Coverage across AI, web, API, and trust layers

We keep the audit grounded in real business risk, not commodity scanner copy.

AI assistants and agent workflows

Prompt injection, policy bypass, hidden instruction disclosure, unsafe tool use, and data exposure across agent-driven flows.

Websites and authenticated journeys

Authentication, authorization, session handling, payment or intake forms, and the business-critical paths attackers actually target.

APIs and internal integrations

Broken access control, injection risk, rate-limit gaps, overexposed data, and privilege boundaries between services.

Controls, guardrails, and trust layers

NeMo Guardrails, workflow protections, abuse resistance, and verification of whether your intended controls hold up under pressure.

Engagement Flow

A clear process from scope to verified remediation

The audit is structured to help you make decisions quickly and fix the right issues first.

Step 01

Scope and align

We define the attack surface, understand the business context, and agree on a scoped audit plan with clear timelines.

Step 02

Audit like an attacker

NullShield combines targeted automation with analyst-guided testing across AI, web, API, and access-control paths.

Step 03

Report and review

You receive an executive summary, technical findings, remediation priorities, and a review conversation with your team.

Step 04

Verify and monitor

One verification retest is included after fixes, with monitoring retainers available to track regressions as your systems change.

Sample Report

A sanitized preview of the deliverable clients use internally

This is where NullShield earns trust, a report that helps leadership understand exposure and gives technical teams a clear remediation path.

Sanitized audit preview

NullShield Premium Security Audit

Prepared for: [REDACTED CLIENT] • Report date: April 2026

Scope: AI assistant, public web app, authenticated API, admin workflows

Executive summary

NullShield completed an attacker-realistic assessment across the client’s AI assistant, website, API, and supporting authentication flows. The audit prioritized business risk, exploitability, and remediation clarity over raw finding count. Critical and high-severity issues were manually validated, and the report package included a leadership-ready summary, technical findings, and a verification retest plan.

  • One verification retest included after fixes
  • Executive and technical remediation guidance
  • Evidence sanitized for safe stakeholder sharing

Risk snapshot

1

Critical

2

High

3

Medium

2

Low

Attack surface reviewed

  • Customer-facing AI assistant
  • Marketing website and authenticated flows
  • Public and internal API endpoints
  • Access control, rate-limit, and abuse paths

Fix this first

Priority 1

Broken object-level authorization in administrative API

A low-privilege user could enumerate and retrieve other customer records through predictable object references.

Action: Enforce server-side ownership checks and add negative authorization tests before redeploying.
Priority 2

AI assistant accepted prompt-injection chain that exposed hidden operating instructions

Attackers could extract internal guidance and tool behavior, increasing the chance of downstream abuse.

Action: Tighten policy handling, add adversarial prompt filters, and validate exposed tool responses during retest.
Priority 3

Password reset and login endpoints lacked resilient rate limiting

The current controls increased account-enumeration and brute-force risk during high-volume probing.

Action: Apply IP and account-aware throttling, improve telemetry, and verify lockout behavior across edge cases.

Business impact summary

  • Customer data exposure risk in shared operational workflows
  • Higher likelihood of abuse against AI-assisted support channels
  • Elevated incident-response cost if access control issues reach production

Evidence and verification cues

  • Sanitized request and response pairs preserved for each validated finding
  • Exploit paths confirmed from an external tester perspective before reporting
  • Verification checklist prepared for post-remediation retest

Methodology and trust note

  • Mapped to OWASP Top 10, OWASP API Security Top 10, and OWASP LLM Top 10
  • Manual review layered on top of automated reconnaissance and abuse-path testing
  • Confidence note: critical and high findings were manually reproduced; lower-severity items were corroborated with repeatable evidence before inclusion

Technical findings preview

NS-A01

Administrative API exposed cross-tenant records through predictable object identifiers

Validated through sanitized request replay showing unauthorized access to customer account metadata.

NS-LLM07

Prompt injection sequence disclosed hidden assistant instructions and tool-routing hints

Confirmed across two phrasing variants, with output redacted in this preview for safety.

NS-W11

Password reset flow allowed account enumeration and weak throttling under sustained probing

Observed via differential responses and missing backoff behavior on repeated attempts.

What the full engagement includes

Full client deliverables include the executive summary, prioritized remediation plan, technical evidence package, review call, and one verification retest after fixes.

Framework Alignment

Useful for compliance conversations, without turning compliance into the pitch

Framework references support prioritization, stakeholder communication, and procurement readiness, but the audit stays centered on real exploitable risk.

OWASP Member
500+ Security Tests
OWASP Top 10 Compliant
OWASP LLM Top 10
PCI DSS Aware
SOC 2 Framework

OWASP Top 10

Grounds the audit in common web application risk and remediation priorities.

OWASP API Security Top 10

Supports API authorization, data exposure, and abuse-path review.

OWASP LLM Top 10

Extends coverage into prompt injection, unsafe agency, and AI-specific trust failures.

PCI DSS / SOC 2 contexts

Useful when you need findings organized for customer trust, procurement, or compliance conversations.

Engagement Structure

Public pricing that feels like a service menu, not a scanner catalog

Most teams start with a baseline audit, verify fixes, and then decide whether monitoring makes sense for their release cadence.

Recommended path

Premium Security Audit → Verification Retest → Monitoring Retainer

Start with a baseline assessment, fix what matters, confirm the fixes, then monitor for regressions as your environment evolves.

Premium Security Audit

Starting at $2,500

The baseline engagement for AI systems, websites, and APIs that need credible external testing and high-trust reporting.

  • Attacker-realistic testing across scoped surfaces
  • Executive summary plus technical findings pack
  • Prioritized remediation guidance and review call
  • One verification retest after fixes
Book discovery

Monitoring Retainer

From $299/mo

Designed for post-audit continuity, regression tracking, and visibility as releases, integrations, and prompts evolve.

  • Monthly or quarterly monitoring cadence
  • Regression and change-aware reviews
  • Priority notification for material issues
  • Trend visibility between audit cycles
See details

Focused Validation

Scoped follow-up

Targeted retesting, release validation, or existing-client follow-up when you need depth on a narrow surface instead of a fresh baseline audit.

  • Best for post-remediation validation
  • Ideal for existing NullShield clients
  • Can cover newly exposed scope or launches
  • Quoted from agreed scope, not self-serve checkout
See details

Frequently Asked Questions

Ready for a higher-trust security baseline?

Book a NullShield discovery call and we'll scope the right audit for your AI systems, websites, and APIs.