Build a Zero-Trust Document Pipeline with OpenCV, Presidio, and LangGraph (Beginner Guide)
This story is from 2026-10-07. It is preserved in the archive; the latest stories are on the live feed.
When building LLM applications, we often rush to pass user data directly into our prompts or RAG databases. But what happens when that data is a passport, a driver's license, or a medical record? Sending raw identity documents across an external trust boundary to an LLM API is a massive privacy ris…
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- 2026-10-07 10:42 · DEV Community — AI
Build a Zero-Trust Document Pipeline with OpenCV, Presidio, and LangGraph (Beginner Guide)