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Security1 September 2026·5 min read

Logging AI systems without leaking customer data

You need traces to debug and audit. Prompts and outputs contain personal and confidential data. How to keep both.

Full prompt and response logs are the most useful debugging tool and the most sensitive data store in the system. Treat them accordingly.

Practices

  • Decide what to log: metadata always; content only where needed and permitted.
  • Redact personal and secret values before storage.
  • Restrict access by role and record who views logs.
  • Set retention limits and delete on schedule.
  • Keep logs in approved regions and systems.

The log store inherits the most sensitive data that flows through the system. Classify and protect it as such.

Related capability

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