🔐 Storage Credentials in Databricks Unity Catalog (AWS) — The Security Backbone You Can't Ignore

Storage Credentials in Databricks Unity Catalog (AWS) are a security backbone that connects governance with S3 permissions. They replaced cluster-level instance profiles, providing per-user, per-table, and per-schema access control. Storage Credentials are AWS IAM Roles that Databricks assumes via AWS STS to access S3 securely. They are registered in Unity Catalog with a SQL statement and enforce S3 permissions consistent with table-level governance. Without them, SQL Warehouses cannot query data and External Locations cannot be created.