While a regular user cannot control data breaches, there are some steps to ensure that one’s Aadhaar card number is not used by anyone else. A look at the steps to keep in mind:
- Two-factor authentication: It is imperative that your Aadhaar is linked to one’s primary mobile number and email ID. This is where UIDAI will send the one-time password (OTP) if someone tries to access your Aadhaar account or using it for any verification. If one has changed your mobile phone number for any reason, it is best to go to an Aadhaar enrolment centre and update this information as soon as possible. Aadhaar verification can only happen with this OTP.
- Masked Aadhaar copy: One can download a ‘Masked Aadhaar’ copy from the official UIDAI website. You can then share a photocopy or version of this, instead of your full Aadhaar id. This version only has the last four digits of your Aadhaar number, instead of the full number. It can be downloaded from UIDAI website itself.
- Locking biometrics: If one is worried about misuse of your Aadhaar biometric data, one can also lock it from the UIDAI website. Logging into MyAadhaar shows this as one of the options on the dashboard. According to the website, “When you lock your biometrics (fingerprint, iris, and face), they can no longer be used for authentication. However, OTP-based authentication would continue to be available as needed.”
- Users can lock this data temporarily or permanently, depending on preference, and it can be unlocked in both cases.
- Use VID: The Virtual Identity, or VID, is a system of “Limited KYC” (Know Your Customer). This hides the Aadhaar number from the authenticating agency, while still confirming the identity of the user. This is a 16-digit number, but temporary in nature. So, unlike the permanent 12-digit Aadhaar number, the VID is valid only for some time.
- The old VID expires when a new one is generated, and only one valid VID number can be there against a particular Aadhaar number at any given point in time.
- VID confirms your identity to the authenticating entity, say your bank. The VID can be generated from the Aadhaar resident portal or the mAdhaar app on iOS and Android.