LLM Penetration Testing Services
Secure Your AI Systems Before Attackers Can Exploit Them
Cybri’s senior ethical hackers identify and remediate vulnerabilities in your AI and large language models.
In 2024, 87% of organizations faced an AI-powered cyber attack
LLMs like ChatGPT, Claude, and enterprise fine-tuned models are powering critical workflows. But they also introduce new and dangerous attack surfaces.
Cybri Eliminates Risks Presented by Real World Attacks Like
Prompt Injections & Jailbreaking
Attackers manipulating prompts to override safeguards
Data Leakages
Sensitive customer or business data being exposed
Adversarial Manipulation
Malicious actors distorting model outputs or poisoning training data
API Misconfigurations
Integrations creating pathways for unauthorized access
These risks carry real business consequences like compliance violations, reputational damage, and revenue loss.
Our Approach to LLM Penetration Testing
Our phased approach ensures we don’t just find vulnerabilities. We help you understand their real business impact.
- 1. Scope & Threat Modeling: We identify critical systems, data flows, and attacker profiles.
- 2. Adversarial Testing: Our team simulates prompt injections, jailbreaks, and data exfiltration attempts.
- 3. Red Teaming: Cybri’s US-based ethical hackers replicate real-world attack scenarios.
- 4. Hybrid Tools: Our senior testers augment with AI-powered agents for deeper coverage.
- 5. Reporting & Guidance: We provide clear, executive-ready deliverables with remediation steps.
What You Get From a Cybri LLM Pen Test
Here’s what you can expect when you partner with us:
- A detailed vulnerability report specific to your AI and LLM systems.
- A prioritized remediation roadmap mapped to risk severity.
- Business impact analysis: vulnerabilities translated into compliance, financial, and reputational risks.
- Compliance alignment for frameworks like SOC 2, HIPAA, PCI-DSS, and GDPR.
- Stakeholder-ready reporting, with tailored executive summaries and technical details.
What Our Customers Have to Say
MyPostcard – a global app with over 1 million registered users.
“CYBRI is a great solution that helps streamline the penetration testing process. I strongly recommend them and will work with them again.”
– Marco Huslmann, CTO MyPostcard
Pangea.app – an online HR app connecting students with contract opportunities.
“I am confident CYBRI is the right penetration testing choice if you are looking to build a secure business environment.”
– John Tambuting, CTO Pangea.app
Intus Care – a healthcare technology company that helps large healthcare organizations.
“I highly recommend CBYRI to businesses that need penetration testing to ensure their business infrastructure is secure.”
– Alex Rothberg, CTO IntusCare
Cherre.com – Cherre is the leader in real estate data and insight.
“We worked with CYBRI on assessing vulnerabilities and understanding the risks of our client-facing web assets. We are satisfied with the results and the professionalism of the Red Team members. Highly recommend CYBRI to all businesses.”
– L.D. Salmanson, CEO at Cherre.com
Barasch & McGarry – Lawyers For The 9/11 Community
“I am an attorney who represents thousands of people in the 9/11 community. CYBRI helped my company resolve several cybersecurity issues. I definitely recommend working with CYBRI.”
– Michael B. Managing Partner, Barasch & McGarry
Cylera – Cylera is the centralized cybersecurity solution that enterprise networks have been waiting for.
“I’m using CYBRI and have been very impressed with the experience and quality of the experts and CYBRI’s customer service. It has been a super seamless process that I’m happy and pleased with – I recommend CYBRI to all businesses.”
– Tim O., CEO at Cylera
Healthcare.com – a better way to find health insurance that’s right for you
“I hired CYBRI to help my company with various cybersecurity services, specifically HIPAA and CCPA. I have been satisfied with the quality of work performed by the cybersecurity expert. The customer service is excellent. I would recommend CYBRI for all of your cybersecurity needs.”
– Sergio Vela, CTO at HealthCare.com
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Secure a Specialized Pen Test for Your AI-Driven Tech
We’re not a generic penetration testing provider. We provide specialized pen testing for SaaS, cloud, and AI-driven technologies. Contact us for a free strategy call today.
Read More
I am an attorney who represents thousands of people in the 9/11 community. CYBRI helped my company resolve several cybersecurity issues. I definitely recommend working with CYBRI.
Read More
I’m using CYBRI and have been very impressed with the experience and quality of the experts and CYBRI’s customer service. It has been a super seamless process that I’m happy and pleased with – I recommend CYBRI to all businesses.
Read More
I hired CYBRI to help my company with various cybersecurity services, specifically HIPAA and CCPA. I have been satisfied with the quality of work performed by the cybersecurity expert. The customer service is excellent. I would recommend CYBRI for all of your cybersecurity needs.
Read More
We worked with CYBRI on assessing
vulnerabilities and understanding
the risks of our client-facing web
assets. We are satisfied with the
results and the professionalism of
the Red Team members. Highly
recommend CYBRI to all businesses.
Read More
CYBRI is a great solution that helps streamline the penetration testing process. I strongly recommend them and will work with them again.
Read More
I highly recommend CBYRI to businesses that need penetration testing to ensure their business infrastructure is secure.
Read More
I am confident CYBRI is the right penetration testing choice if you are looking to build a secure business environment.
Previous
Next
Discuss Your Project
Read More
I am an attorney who represents thousands of people in the 9/11 community. CYBRI helped my company resolve several cybersecurity issues. I definitely recommend working with CYBRI.
Read More
I’m using CYBRI and have been very impressed with the experience and quality of the experts and CYBRI’s customer service. It has been a super seamless process that I’m happy and pleased with – I recommend CYBRI to all businesses.
Read More
I hired CYBRI to help my company with various cybersecurity services, specifically HIPAA and CCPA. I have been satisfied with the quality of work performed by the cybersecurity expert. The customer service is excellent. I would recommend CYBRI for all of your cybersecurity needs.
Read More
We worked with CYBRI on assessing
vulnerabilities and understanding
the risks of our client-facing web
assets. We are satisfied with the
results and the professionalism of
the Red Team members. Highly
recommend CYBRI to all businesses.
Read More
CYBRI is a great solution that helps streamline the penetration testing process. I strongly recommend them and will work with them again.
Read More
I highly recommend CBYRI to businesses that need penetration testing to ensure their business infrastructure is secure.
Read More
I am confident CYBRI is the right penetration testing choice if you are looking to build a secure business environment.
Previous
Next
Frequently asked questions
Traditional pen tests focus on networks and apps. LLM testing simulates adversarial prompts, data exfiltration, and model manipulation.
No. Tests are scoped carefully to avoid downtime or disruption.
Most of our LLM pen tests run between 2 to 4 weeks depending on scope and integrations.
A comprehensive risk report, prioritized remediation roadmap, and tailored executive summary.
Yes. We provide step-by-step remediation guidance and can retest once fixes are applied.