How can you secure a 1.4 Billion people biometric database with hundreds of millions authentication attempts a day? Aadhaar is the largest biometric repository in the world based in India, and is a subject of concern to many people around the world. Companies rely on the Aadhaar database as a source of authorization and truth. What are the consequences of a breach as a result of biometric leak for a country the size of India? In this talk, I will present the technical security aspects of Aadhaar as a database, the privacy concerns and possible attack vectors.