Hybrid Row-Level Security: AWS + Power BI

Most “hybrid cloud” case studies are really just migration stories. This one isn’t. A US-based physical security and fire systems integrator had 14+ subsidiary companies worth of data in AWS, thousands of field technicians in Azure Active Directory, and a board that wanted three distinct views of the same data - enforced by who the user was, not by which dashboard they clicked. Here is the architecture we stood up, the access pattern underneath it, and the two gotchas that will cost you a week i