As Aadhaar contains critical information, account holders are worried about the safety of their data as any misuse of details can prove a danger for the lifetime. Hence, it is vital to check the authentication of any website before submitting the Aadhaar details. The online tool, called 'Aadhaar Authentication History', enables Aadhaar holders to view their authentication details and access their Aadhaar Authentication History (Notifications) data. Using this tool, a user can access a variety of information such as Auth Type (Method of Aadhaar Authentication), Transaction ID ( Unique Aadhaar transaction ID at the time of request) and Error Code (Aadhaar authentication failure code), Authentication Response ("Y" - Success. "N" - Failure), Time and Date of Authentication, and Response Code.