UIDAI allows you to temporarily lock and unlock your biometric information, to prevent any kind of misuse. Biometric information consists of iris, fingerprints and the facial photograph. Iris data and fingerprints will be used for authentication. Once the biometric information is locked, no authentication is possible, till it is unlocked.
Now lot of complaints have been coming that Aadhaar numbers and personal information of several million Indians may have been leaked from government portals. However, UIDAI had said in response to an RTI query that the core biometric data of Aadhaar card holders have till date not faced any cyber attack.
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Please Note: It is mandatory to have a registered mobile number to lock /unlock your Aadhaar card biometrics. If you have not registered your mobile number with Aadhaar, get it done by visiting the nearest Aadhaar Enrolment Centre.
To unlock Aadhaar card biometric details, you have to again visit the UIDAI website and enter the Aadhaar number. After this, you will receive an OTP to unlock your Aadhaar card biometric details.
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