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Measuring Attack Success: A Data-Science Methodology for Red-Teaming

Most reported jailbreak rates are anecdotes, not measurements. This series builds a rigorous methodology for quantifying AI attack success: defining attack-success-rate, calibrating the judge, sizing samples with real confidence intervals, measuring transfer, and a reproducible reporting standard. Grounded in NIST AI 100-2, HELM, and the statistics primary literature.

Murali Chillakuru·5 articles
  1. 1
    What Is Attack-Success-Rate, Really? The Unit of Analysis, the Population, and the Judge

    A jailbreak rate is only a measurement if you can say what was counted, over which population, by which judge — otherwise it is an anecdote with a percent sign.

  2. 2
    The Judge Problem: LLM-as-Judge Bias, Human-Label Reliability, and Calibrating a Grader

    Every attack-success number is only as trustworthy as the grader that produced its labels — and both automated and human judges carry measurable, correctable error.

  3. 3
    Sampling and Confidence: Wilson Intervals, Per-Family Estimation, and Sequential Testing

    An attack-success-rate is a proportion estimated from a finite sample; the honest report is an interval, computed with a method that survives small n, extreme rates, and correlated trials.

  4. 4
    Transfer and Generalization: Measuring Whether an Attack Holds Across Models, Prompts, and Time

    An attack's success on the set it was tuned against is a training score, not a generalization claim — transfer must be measured on held-out models, prompts, and future versions.

  5. 5
    A Reporting Standard: Datasets, Seeds, Judge, Confidence Intervals, and Threats to Validity

    A red-team result is reproducible only if the report carries everything needed to rerun it — the dataset, the seeds, the judge, the intervals, and an honest limitations section.