#AWS#Bedrock#RAG#Guardrails#Privacy
PII & PHI Detection and Redaction in AI Pipelines — with AWS Bedrock Guardrails
> July 1, 2025
Why PII and PHI must be protected in AI systems, the different ways to detect and redact sensitive data, and how AWS Bedrock Guardrails fits into a RAG pipeline built on S3, Bedrock Knowledge Base, and LangChain.
AI pipelines process enormous volumes of text — support tickets, medical notes, contracts, HR records. That text almost always contains sensitive personal data. Getting the handling wrong is not a configuration mistake; it is a legal and ethical failure. This post explains why PII and PHI must be treated with care, how detection and redaction work in general, and where AWS Bedrock Guardrails fits inside the RAG architecture established in this series.
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