TECHSONAR
Specialisation

[AI Penetration Testing]

Security testing built
for AI systems.

We specialise in adversarial security testing of AI and ML systems, LLM prompt injection, RAG pipeline attacks, model extraction, agentic AI exploitation, and AI supply chain security. Purpose-built for organisations building or deploying AI.

OWASP

LLM Top 10 aligned testing methodology

Agentic

Coverage of AI agents, RAG, and tool-use systems

Novel

Attack research beyond standard checklists

Actionable

Developer-ready remediation guidance

Attack coverage

What we test

[01]

LLM prompt injection & jailbreaking

Direct and indirect prompt injection attacks against large language models. Jailbreak attempts, system prompt extraction, and instruction override testing. Covers both hosted APIs (OpenAI, Anthropic, Gemini) and self-hosted models.

[02]

RAG and retrieval pipeline attacks

Security testing of retrieval-augmented generation systems, data poisoning, context manipulation, unauthorised data retrieval, and cross-tenant data leakage in multi-tenant RAG architectures.

[03]

Model extraction and inversion

Attempts to extract model weights, training data, or proprietary system prompts through repeated querying. Membership inference attacks to determine whether specific data was used in training.

[04]

Agentic AI and tool-use security

Security testing of AI agents with tool access, code execution, web browsing, file system access, and API calls. Privilege escalation through agent chains, unintended action execution, and sandbox escape.

[05]

AI supply chain and model integrity

Assessment of model provenance, fine-tuning pipeline security, and third-party model risks. Backdoor detection in fine-tuned models and evaluation of model cards and documentation for security gaps.

[06]

AI application security review

Full security review of applications built on AI, covering the traditional application attack surface (auth, injection, data exposure) plus AI-specific risks including output handling, trust boundaries, and human-in-the-loop bypass.

Methodology

How we approach AI testing

[01]

AI system mapping

Map the AI system architecture, models, APIs, data pipelines, agent chains, tool integrations, and trust boundaries. Identify the highest-risk attack surfaces.

[02]

Threat modelling

AI-specific threat modelling covering adversarial inputs, data poisoning, model extraction, and agentic attack paths. Prioritised by business impact.

[03]

Adversarial testing

Manual adversarial testing by engineers with deep AI security expertise. Novel attack chains, not just standard prompt injection checklists.

[04]

Reporting & guidance

Technical findings with developer-ready remediation guidance. Executive summary covering AI-specific risk posture and recommended controls.

Tooling & frameworks

What we use

LLM Testing

GarakPyRITPromptBenchLLM-Fuzzer

Adversarial ML

ART (IBM)FoolboxCleverHansTextAttack

Model Analysis

Hugging Face toolsONNX inspectionCustom extraction scripts

Frameworks

OWASP LLM Top 10MITRE ATLASNIST AI RMFEU AI Act

RAG & Agents

LangChain security reviewLlamaIndex auditCustom agent harnesses

Traditional AppSec

Burp Suite ProOWASP ASVSAPI security testing

Why TechSonar

What makes this different

AI security specialists

Our testers have deep expertise in both traditional application security and AI/ML systems, not generalists with a prompt injection checklist.

Novel attack research

We conduct original research into AI attack techniques. Our engagements go beyond published checklists to find the vulnerabilities others miss.

Full stack coverage

We test the AI layer and the application layer. Most AI pentests ignore the traditional attack surface, we cover both.

Compliance-ready

Reports aligned to OWASP LLM Top 10, MITRE ATLAS, NIST AI RMF, and EU AI Act requirements.

[Get started]

Building or deploying AI? Let us test it.

Talk to us about your AI system, whether it is an LLM-powered product, an agentic workflow, or a RAG pipeline. We will scope an engagement that gives you real confidence in its security.