Traditional pentest
Focuses on infrastructure, code and known CVEs.
Still needed for the app and cloud around your AI.
4.9on G2
AI Penetration Testing Services
Stay ahead of AI-specific threats like prompt injection, data leakage and model manipulation, before they erode trust or compliance. We bring offensive security expertise for AI systems, not just traditional apps.
We were impressed by how deep and thorough the GRSee team got familiar with our platform during the onboarding process.Omri Mendelevich, CTO & Co-Founder, Dynamic Yield
AI systems fail in ways traditional testing never checks.
Even when your cloud, APIs and application are secure, a model can still be manipulated into leaking data, ignoring its instructions or taking actions it should not. We simulate realistic adversarial attacks on your models and the infrastructure around them.
We examine how models can be manipulated, how data can leak, and where attackers can gain unintended access, then help your team mitigate it before it becomes a real incident.
Penetration testing, done properly.
- Expert ethical hackersExperienced security professionals with deep expertise in offensive security.
- Advanced hybrid testingStrategic automation for common issues, manual deep-dive testing for the hard-to-find ones.
- Tailored to your environmentEvery test is customized, so results are accurate and relevant.
- Actionable insightsA report with prioritized remediation steps your engineers can act on.
- Fast turnaroundComprehensive results without long waits, so you can act quickly.
- Testers you can talk toKickoff, status updates and a post-assessment review, with testers on hand to clarify findings.
- Results on our platformTrack status, manage remediation and see analytics on findings in one place.
- Fixed scope, fixed priceOne clear quote upfront. No change orders mid-test.
How an AI pentest runs.
Scope, test, report, retest: agreed with your team before we start.
Scope
- Scope and attack surface mappingWe map the models, prompts, data sources, plugins, tools and integrations in scope, and agree safety boundaries with your team.
- Discovery and reconnaissanceWe learn how the system behaves, what it can access and how users and other systems talk to it.
Test
- Adversarial and prompt-based testingPrompt injection, output hijacking, data leakage, model manipulation and misuse scenarios, using the OWASP guidance for LLMs and the OWASP AI Testing Guide.
- Integration and permission testingHow third-party AI tools, plugins and APIs handle permissions, data access, authentication and user input.
Report
- Reporting and remediation guidanceAttack scenarios, business impact, affected components and prioritized fixes, with technical walkthroughs for your team.
Fix and keep going
- RetestingWe validate your fixes once they are in.
- PT as a ServiceContinuous testing as your models, prompts and integrations change.
Traditional pentest or AI pentest?
AI pentest
Targets model behavior, data flows and human-AI interaction.
Prompt abuse, hallucination exploitation and training data extraction.
Many teams need both: AI testing for the model, traditional testing for the app and cloud around it.
What AI penetration testing does for your business.
- Find AI-specific vulnerabilitiesThe threats unique to AI that traditional pentesting misses.
- Prevent data leakageMake sure models do not expose training data, sensitive prompts or user input.
- Simulate real-world AI threatsSee how attackers could manipulate outputs or bypass your safeguards.
- Support emerging standardsAlign with NIST AI RMF, ISO 42001 and AI-related GDPR requirements.
- Ship AI customers trustAnswer enterprise buyers' AI security questions with evidence.
Why teams choose GRSee for AI penetration testing.
GRSee has become a trusted advisor when it comes to all security and compliance issues.Eilon Reshef, CTO & Co-Founder, Gong
- Offensive AI expertiseAmong the few firms testing AI systems, not just traditional apps.
- Safe, scoped testingAttack scenarios and safety boundaries agreed with your team before we start.
- Joined up with AI governancePairs with our ISO 42001 and NIST AI RMF work.
Related services
Working with GRSee felt like working with an extension of our own team.Tomer Cohavi, VP Engineering, Snappy
AI pentest guides from our team.
- Vulnerability Scan vs Penetration TestShay Mozes, August 8, 2025Read the guide
- Penetration Testing Checklist: What to Do Before, During, and After the TestShay Mozes, September 1, 2025Read the guide
- Penetration Test for Startups: Full Guide to Early SecurityShay Aberbach, September 1, 2025Read the guide
AI pentest questions, answered.
Still not sure? Bring your questions to a scoping call.
What types of AI systems do you test?
LLMs, traditional machine learning models, classification and regression systems, recommendation engines, generative AI for images and text, and AI features such as chatbots and copilots.
What are examples of AI-specific vulnerabilities?
Prompt injection, model inversion, adversarial input manipulation, data leakage from model outputs, overly broad plugin access, insecure fine-tuning and indirect prompt leakage.
Do AI systems need testing if our infrastructure is already secure?
Yes. Infrastructure security does not address AI-specific risks. Models can still be vulnerable to prompt injection, output manipulation, data leakage or adversarial attacks on their behavior.
Can you test third-party AI integrations and plugins?
Yes. We assess how third-party tools, plugins, APIs and embedded models handle permissions, data access, authentication and user input.
Will testing affect the availability of our models?
Testing is planned to minimize disruption. We agree scope, attack scenarios and safety boundaries with your team before we begin.
How long does an AI pentest take?
Most projects take 2 to 4 weeks, depending on the system's complexity, the number of endpoints and the AI integrations in scope.
Can AI pentesting help with compliance?
Yes. It supports alignment with NIST AI RMF, ISO 42001, emerging EU AI regulation and privacy requirements under GDPR.
What do we receive at the end?
A report with vulnerabilities, attack scenarios, business impact, affected components and prioritized remediation, plus technical walkthroughs to help validate fixes.
Book your scoping call.
Pick a time that suits you. You leave with a scope and a fixed quote.
- Testers you can talk to
- A retest after you fix
- Results on our platform
Local teams, your time zone
- United States
- Europe
- Middle East
We work in your time zone and support you in multiple languages.
We truly enjoyed working with you and highly recommend your services to anyone looking for professionalism and excellence in cybersecurity.Kobi Lechner, Co-Founder and COO, Rescana
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