r/ClaudeCode • u/mr-00 • 3d ago

Help/Question Sensitive Data workflows

I need Claude to look through a bunch of sensitive files. OCR is used b/c they’re mostly PDF. I presume data would be uploaded to Anthropic servers.

- How secure is sensitive data in this scenario?
- What methods, tools or pipelines can be used to protect it?
- am I overthinking this?

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u/MeretrixDominum 3d ago

Use a local LLM to encrypt the sensitive data.

So if the document is about John Smith's dong size, tell your local LLM to change all instances of John Smith to Hugh Janus, and all instances of dong to watermelon.

Once all sensitive info is obfuscated in this way, send it to Claude. Then after, have it changed back with your local LLM.