AI / LLM Penetration Testing Service

AI / LLM Penetration Testing Service

Our AI / LLM Penetration Testing service provides specialised security testing of AI systems, with a particular focus on Large Language Models (LLMs) and AI-driven applications.

 

AI‑Specific Security Testing and Exploitation Assessment

Our service identifies vulnerabilities that are unique to AI systems, including those that cannot be detected through traditional penetration testing approaches.

It enables organisations to understand how their AI systems can be exploited, manipulated, or abused, and provides clear remediation guidance to strengthen security posture. A key consideration is that LLMs are deployed uniquely, and therefore a unique testing approach is needed for testing each model. It’s not viable to just send a collection of default prompts as payloads.

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The Importance of AI/ LLM Penetration Testing

AI systems introduce new and evolving attack vectors that differ significantly from traditional application vulnerabilities, including:

  • Prompt Injection Attacks – Manipulating model inputs to bypass controls or extract sensitive information
  • Data Leakage Risks – Exposure of sensitive data through model outputs or interactions
  • Adversarial Inputs – Inputs designed to cause incorrect or harmful model behaviour or attempt to jailbreak
  • Model Abuse & Misuse – Exploitation of AI capabilities for unintended or malicious purposes
  • Integration Vulnerabilities – Weaknesses in how AI systems interact with APIs, data sources, and external services

Without targeted testing, these vulnerabilities can remain undetected until exploited in production environments.


Start Your AI/ LLM Penetration Testing Journey

Speak with one of our experts to see how we can support your organisation.

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How it Works

Our approach combines traditional penetration testing methodologies with AI-specific techniques:

  1. Scoping & Threat Modelling – Defining attack surfaces and testing objectives
  2. Test Design – Developing tailored attack scenarios for AI systems
  3. Execution – Conducting controlled, ethical attacks against AI components
  4. Analysis & Validation – Confirming vulnerabilities and assessing impact
  5. Reporting & Remediation Support – Delivering detailed findings and guidance 

Customer Stories

Government Agency Case Study

The members of staff have greatly improved their knowledge and understanding of assurance since Bridewell supported the team.

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Based on our extensive experience with the CAF and the water sector, this water company chose Bridewell to validate their position.

hospitality

Our client’s overall security posture has been significantly strengthened, and they now benefit from the successful implementation and enhancement of key security measures.

Hospitality Company
All Customer Stories

Why Us?

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Awards

Our team have won numerous industry awards, including 'Cyber Business of the Year' at the National Cyber Awards 2024 and 'Best Cyber Security Company of the Year' at the Cyber Security Awards 2023.

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Certifications

Our people and services are highly accredited by leading industry bodies including CREST, the NCSC, and more. Our SOC holds extensive accreditations from CREST (including for CSIR and SOC2) and works closely with our cyber consultancy services.

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Partnerships

As a Microsoft Partner, we also hold advanced specialisms in Cloud Security and Threat Protection. We’ve also implemented some of the UK’s largest deployments of the Microsoft Security stack, inc. Sentinel, Defender, Purview and more.

Accreditations and Certifications

We hold the most NCSC assured services of any cyber security services provider. Our cyber security consultants and services are globally recognised for meeting the highest standards of accreditation and have leading industry certifications. 

Accreditations - NCSC