reduce-prompt-leak changedtest-and-evaluate/strengthen-guardrails/reduce-prompt-leak
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44description: Reduce the risk of prompt leaks by separating context from user queries, filtering Claude's outputs, and auditing prompts, without degrading task performance.
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7Prompt leaks can expose sensitive information that you expect to be "hidden" in your prompt. Although no method is foolproof, the following strategies can significantly reduce the risk.
7Prompt leaks can expose sensitive information that you expect to be “hidden” in your prompt. Although no method is foolproof, the following strategies can significantly reduce the risk.
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99## Before you try to reduce prompt leak
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4949 ```
5050</Accordion>
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52* **Use post-processing:** Filter Claude's outputs for keywords that might indicate a leak. Techniques include using regular expressions, keyword filtering, or other text processing methods.
52* **Use post-processing:** Filter Claude’s outputs for keywords that might indicate a leak. Techniques include using regular expressions, keyword filtering, or other text processing methods.
5353 <Note>
5454 You can also use a prompted LLM to filter outputs for more nuanced leaks.
5555 </Note>
56* **Avoid unnecessary proprietary details:** If Claude doesn't need it to perform the task, don't include it. Extra content reduces Claude's adherence to "no leak" instructions.
57* **Audit regularly:** Periodically review your prompts and Claude's outputs for potential leaks.
56* **Avoid unnecessary proprietary details:** If Claude doesn’t need it to perform the task, don’t include it. Extra content reduces Claude’s adherence to “no leak” instructions.
57* **Audit regularly:** Periodically review your prompts and Claude’s outputs for potential leaks.
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59Remember, the goal is not just to prevent leaks but to maintain Claude's performance. Overly complex leak-prevention can degrade results. Balance is key.
59Remember, the goal is not just to prevent leaks but to maintain Claude’s performance. Overly complex leak-prevention can degrade results. Balance is key.
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