  The concept of Aadhaar came with the need for a unique identity for every
individual. To implement this, the Indian government created the authority
UIDAI to distribute and generate user identities for every individual based on
their demographic and biometric data. After the implementation, came the
security issues and challenges of Aadhaar and its authentication. So, our study
focuses on the journey of Aadhaar from its history to the current condition.
The paper also describes the authentication process, and the updates happened
over time. We have also provided an analysis of the security attacks witnessed
so far as well as the possible countermeasure and its classification. Our main
aim is to cover all the security aspects related to Aadhaar to avoid possible
security attacks. Also, we have included the current updates and news related
to Aadhaar.
