Advanced – AI & ML Testing
Guardrail Testing – ISTQB Definition
Last Updated: July 12, 2026 · SoftwareTestPilot QA Team
Official ISTQB Definition
Verification that safety, content, and policy filters correctly block disallowed inputs and outputs in an AI system.
In simple words
Testing the safety filters that stop the AI from saying harmful or off-topic things.
Exam tip
Test guardrails with both benign edge cases (false positives) and adversarial jailbreak prompts (false negatives).
Related terms
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