CleanMyPrompt
2026-03-06CleanMyPrompt Team1 min read

How to Redact Sensitive Data

Patterns and practices for reliably removing PII and secrets before sending prompts to LLMs.

Why redact?

Sending secrets or PII to third-party models increases risk and cost. Redaction strips sensitive tokens and replaces them with stable tags.

Practical tips

  • Centralize regex rules
  • Validate with unit tests
  • Provide user overrides for edge-cases

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