We investigate the privacy and security issues of Aadhaar from antechnology point of view. Specifically, we investigate the possibilities of identification and authentication without consent using the Aadhaar number or biometric data, and unlawful access of Aadhaar data in the central repository. Our analysis suggests that privacy protection in Aadhaar will require a) an independent third party that can play the role of an online regulator, b) study of several modern tools and techniques from computer science, and c) strong legal and policy frameworks that can address the specifics of authentication and identification in a modern digital setting.