System Prompt & Data Extraction Testing
The system prompt is the configuration of your AI feature: the rules it must follow, and sometimes credentials or internal details it should never hold. If it can be extracted, an attacker learns exactly how your AI is built and what it is allowed to do. We test whether yours holds up, and what it would give away if it does not.
What We Test
System prompt leakage (OWASP LLM07): We verify whether the hidden instructions behind your AI feature can be extracted through conversational pressure, creative reframing, or bypassing output restrictions.
Sensitive information disclosure (OWASP LLM02): We check what else the model can be led to reveal: API keys, passwords, internal hostnames, customer data, or business rules embedded in prompts, retrieval sources, or conversation history.
Guardrail exposure: A leaked prompt tells an attacker exactly which rules you enforce. We assess how much of your security posture a leak would hand over.
Why It Matters
Teams regularly place API keys and internal URLs in system prompts without realizing that prompt confidentiality is not guaranteed. A leaked prompt turns every other attack against your application from guesswork into a targeted exercise.
Deliverables
Findings report: What leaks, how, and the impact, mapped to the OWASP Top 10 for LLM Applications.
Remediation guidance: Where secrets should live instead of prompts, and how to restructure your configuration so a leak is harmless.
Regression tests: Repeatable checks so leakage stays fixed.
Put Your AI Features to the Test
Contact us today to scope an AI penetration test. We will walk you through the realistic attack paths against your deployment and where untrusted input meets something that matters in your application.