This article demonstrates how to automate data discovery, classification, and governance using AWS Glue Data Catalog to manage sensitive data across distributed environments.

• Automated detection layer monitors AWS for new S3, RDS, and DynamoDB resources via EventBridge
• Processing layer uses AWS Glue crawlers and jobs to analyze schemas and detect PII patterns
• Management layer maintains centralized Data Catalog with unified visibility across data assets
• Solution deployed via AWS CDK with four stacks: BaseInfra, GlueAssets, GlueJobCreation, Reporting
• Walkthrough demonstrates end-to-end workflow from bucket creation through PII detection and cataloging
• Replaces weeks of manual discovery with automated minutes-long processes
• Best practices include tagging strategy, VPC endpoints, encryption, and cross-account discovery

This framework transforms data governance from manual, error-prone processes into scalable automation that provides real-time visibility into sensitive data across your organization.