Large Language Models (LLMs) are incredible, but asking them to do everything in one go, especially for critical tasks like PII (Personally Identifiable Information) sanitization, is often a recipe for disaster. We've all seen prompts like "Extract PII and summarize." While convenient, this approach often sacrifices accuracy for simplicity, leaving sensitive data vulnerable. In this post, we'll dive into how to build a production-ready PII Sanitization Chain  using LangChain