top of page

AI & LLM Penetration Testing Service

Securing the next generation of AI applications

Talk to an expert

Beyond Standards

Extensive Reports

In-Depth Coverage

Risks we protect you from

As AI becomes part of critical systems, our pentesting is built for high-risk industries, enterprise SaaS, and teams launching AI copilots, agents, and RAG features who need security they can rely on

Teams rolling out AI copilots,
agents, and RAG features

Biotech

SaaS platforms

Digital Health

enterprise platforms

FinTech

AI & LLM penetration testing overview

We don’t do green lights or paper reports. We show what’s actually exploitable and how to fix it.​​ For AI applications, we combine manual verification, source code analysis (when available), and runs of autonomous pentest agents such as CAI to increase coverage

Book a discovery call

What we test

We test the parts of your AI stack that break in the real world

Cloud and secrets surface

Buckets, logs, and telemetry that leak data. Prompt and context redaction for PII/PHI where relevant.

Tools, plug-ins, and APIs

Keys and secrets in context. Unsafe action invocation and lateral movement.

Model interfaces

Prompt injection and jailbreaks. Model extraction via crafted queries (when in scope).

RAG pipelines

Retriever setup, chunking and metadata hygiene. Vector database boundaries and query isolation.

AI agents (planner, memory, tools)

Permission misuse and goal hijacking. Task queue manipulation and cross-agent escalation.

LLM applications

Conversation flows, safety controls, abuse handling. Authentication, sessions, rate limiting.

Approach

We build trust in your technology. The goal is simple: reduce unknown vulnerabilities, protect valuable data, and keep your product reliable and safe

Checklist Assurance

Recognizing the possibility of human error, we counteract it by providing detailed AI security checklists covering OWASP LLM Top 10, MITRE ATLAS techniques, and AI-specific attack vectors.

Comprehensive Coverage

Each detection method excels at identifying particular types of vulnerabilities. We combine manual testing, targeted code review, and autonomous pentest agents (CAI, XBow) to cover the full AI and LLM attack surface.

Personalized Testing

Before testing, we conduct AI-specific threat modeling to pinpoint risks in your model integration, data flows, and agent or RAG pipelines. This ensures scope is realistic and high-impact.

Developer DNA

Code-informed testing stands out as the prime risk-reduction strategy, and we're masters at it. Many of our team have a developer background, enabling deeper analysis of AI workflows and custom integrations.

Business-Oriented

Guided by your business context and risk management priorities, we provide AI security solutions tailored to protect your data, reputation, and compliance posture.

Transparent

Scope decomposition, regular updates, and a dedicated manager keep you fully informed throughout the AI pentest process.

Unbiased

By having at least two security engineers on each AI pentest project, we ensure findings are reviewed from multiple perspectives, reducing false positives and missed issues.

Seamless Integration

Our dedicated manager coordinates with your engineering teams, making the AI pentest process feel like an extension of your development workflow.

Methodologies

We don’t just name-drop frameworks — we apply them in every AI pentest. Our work is guided by proven security standards and adapted to the unique risks of AI systems. Every engagement ends with a clear checklist and threat model so you know exactly what was tested and why it matters

OWASP Web Security Testing Guide
OWASP LLM Top 10 — full checklist coverage for AI-specific vulnerabilities
OWASP Web Security Testing Guide
OWASP AI Testing Guide — comprehensive testing framework for AI system security
Nist
NIST AI RMF — aligning outcomes to recognized AI risk management principles
Penetration Testing Execution Standard
PTES — comprehensive pentest execution framework
OWASP Mobile Security Testing Guide
OWASP ASVS & WSTG — for supporting application security layers in AI stacks

How it works

Cybersecurity is complex. Your path to enterprise readiness doesn’t have to be

Intro & Planning

Schedule a call, and we will:​​

  • Understand your AI application, architecture, and business context

  • Define the scope: LLM apps, RAG pipelines, agents, tools, and integrations

  • Agree on testing rules and objectives

  • Provide a tailored proposal and estimate

Rules of Engagement & Data Handling

Our security engineers will:​

  • ​Map attack surfaces across prompts, data flows, and model integrations

  • Test for AI-specific threats: prompt injection, jailbreaks, RAG poisoning, tool misuse, agent hijacking, and model extraction (if in scope)

  • Review source code where provided

  • Run autonomous pentest agents (CAI, XBow) alongside manual testing to maximize coverage

  • Document all tests in a detailed checklist

Security Testing

Upon completion, our team will:​​​

  • Deliver a clear report on each finding, its risk, and real-world impact

  • Provide evidence: prompts, payloads, transcripts, and screenshots

  • Walk your team through results for full understanding

  • Give actionable remediation steps your engineers can apply immediately

Support & Retesting

Post-assessment, we're still with you:​​​

  • Retest after fixes to confirm all critical and high-risk issues are resolved

  • Issue a Letter of Attestation once verification is complete

  • If any questions come up, our team will be there to help

Reporting & Insights

Upon completion, our team will:​​​

  • Deliver a clear report on each finding, its risk, and real-world impact

  • Provide evidence: prompts, payloads, transcripts, and screenshots

  • Walk your team through results for full understanding

  • Give actionable remediation steps your engineers can apply immediately​​​​

From findings to peace of mind

You get a report that engineers can act on and leaders can trust

AI & LLM Penetration Testing Report
Threat modeling Biotech.jpg

A dual-focused document combining an executive summary for decision-makers with in-depth technical findings for your engineers. Includes real-world impact, reproduction steps, and prioritized fixes

Threat Model Document
Aligned with HIPAA, FDA, MDR Biotech.jpg

A structured representation of the threat landscape tailored to your environment, highlighting potential threats and their prioritized mitigation

Testing Checklist
Submission-ready reports Biotech.jpg

A comprehensive list enumerating every test we conducted, ensuring transparency and thoroughness in our approach

Letter of Attestation
Submission-ready reports-Biotech.jpg

A formal statement confirming all critical and high-risk issues have been remediated and verified, providing independent validation of your system’s security posture

Case studies

An invaluable resource for staying up-to-date on the latest cybersecurity news, product updates, and industry trends

oasys-logo
Pentesting for AI-HealthTech Compliance
More
kaunt.png
Enterprise-Grade Security in Finance & AI
More

Representative findings (anonymized)

Real examples of issues we’ve identified and helped clients fix. Each one shows the kinds of vulnerabilities that can slip through without focused AI/LLM security testing.

01

Agent tool misuse. Unauthorized data access.

What we tested:

A support copilot with search and file retrieval tools.

What we did:

Steered the agent into triggering a high-permission tool without checks.

What we found:

Access to invoices and configuration files containing environment variables.

Why it mattered:

Allowed sensitive data exfiltration via “helpful” tool misuse.

Fix implemented:
  • Least privilege for tools

  • Pre-execution guardrails

  • Output sanitization

  • Abuse simulations in testing

02

RAG namespace escape. Cross-tenant data leakage.

What we tested:

Multi-tenant knowledge assistant using a shared vector database.

What we did:

Crafted queries exploiting missing tenant filters.

What we found:

Snippets from another tenant’s documents in responses.

Why it mattered:

Violated data isolation, risking regulatory breaches and trust.

Fix implemented:
  • Strict metadata and namespace isolation

  • Per-tenant database collections

  • Application-layer filter enforcement

  • Filter validation in CI/CD

Certifications

Our certifications reflect the expertise behind cybersecurity solutions that protect your business

Certifications-6.jpg
Certifications-9.jpg
Certifications-1.jpg
Certifications-13.jpg
Certifications-15.jpg
Certifications-12.jpg
Certifications-14.jpg
Certifications-11.jpg
Certifications-8.jpg
Certifications-7.jpg
Certifications-5.jpg
Certifications-4.jpg
Certifications-3.jpg
Certifications-2.jpg

Recent blog posts

An invaluable resource for staying up-to-date on the latest cybersecurity news, product updates, and industry trends. 

What our clients are saying

90% of our clients return

Sekurno exceeded our expectations, identifying critical vulnerabilities that neither we nor other vendors had detected, and providing actionable recommendations. Their team was responsive, flexible, and consistently provided valuable insights.

Sep 18, 2024

Markus_kobil.jpeg
Markus T.

Chief Technology Architect

kobil_logo_black 1.webp

If you are going to invest in penetration testing, make sure it is more than just a formality. Work with a partner who helps you learn something from the process and improves your actual security. With Sekurno, we received useful feedback and our team became more security aware as a result.

April 11, 2025

Mads-CTO-kaunt.jpeg
Mads

CTO

kaunt_logo.webp

Our collaboration with Sekurno has consistently been seamless.

Jun 12, 2023

Roy.jpeg
Roy

DG VP

Rak.webp

We were genuinely impressed; Sekurno identified vulnerabilities that even major cybersecurity companies within the Google group missed

April 11, 2025

Chan_Performica.jpeg
Chan S.

CEO

Performica testimonials.webp

Their expertise was evident in every aspect of the engagement.

Sep 18, 2024

Max_mgid.jpeg
Max, R.

Deputy CTO

testimonials_mgid

Still have a questions?

Frequently asked questions

  • Yes. We test your application layer, prompts, retrieval, tools, and agents around those providers, and we respect their rate limits and terms.

  • We prefer a staging or sandbox environment. Production testing is possible with written rules of engagement, allow-listed IPs, and non-destructive methods.

  • Test accounts, test data, API endpoints, and any documentation on prompts, tools, RAG, and agents. Optional but helpful: read-only code or config access, and a diagram of your architecture.

  • Typical scope is 2 - 4 weeks depending on complexity: number of apps, tools, data sources, tenants, and whether code access is provided.

    • AI & LLM pentest report with impact and clear repro steps

    • Threat model tailored to your system

    • Completed checklists: OWASP LLM Top 10, WSTG, MASTG

    • Evidence: prompts, payloads, transcripts, and screenshots

    • Retest results and, when Critical/High issues are fixed, a Letter of Attestation

  • Yes. We retest once after you implement fixes to confirm closure of Critical and High issues.

  • We minimize test data, use sanitized artifacts, and delete on request under an agreed policy. If regulated data is involved, we align with your controls.

  • Yes, in addition to manual testing and optional code review. We run autonomous pentest agents (e.g., CAI) under strict boundaries to extend coverage without risking unsafe actions.

  • Only with explicit consent and agreed rate limits. Many clients choose to exclude it; when included, we run it safely and document the approach.

  • We validate metadata and namespace isolation, attempt cross-tenant retrieval under controlled conditions, and verify application-layer filters.

  • By scope and complexity: number of applications, tools, connectors, tenants, and environments; whether code review is included; and any optional modules (e.g., model extraction).

  • Yes. We align on rules of engagement up front, provide regular updates, and map results to your internal processes to speed remediation.

7/10 clients found issues previous vendors had missed

Next steps

To strengthen your security posture, contact Sekurno for a security consultation and learn how proactive cybersecurity measures can protect your business.

Book a call
bottom of page