Aadhaar Biometric Lock: Foolproof Way to Prevent Fraud — Secure It via SMS or Online

Why Securing Your Aadhaar Biometrics Is Crucial Today

In today’s digital world, the Aadhaar card has become the foundation of identity verification for millions of Indians. It is essential for accessing government schemes, banking services, telecom services, and more. However, the misuse of biometric data — fingerprints, iris scans, and facial recognition — has become a growing threat. To protect citizens, the Unique Identification Authority of India (UIDAI) introduced the Aadhaar Biometric Lock, an effective security measure that empowers individuals to safeguard their biometric information against unauthorized use.

What is Aadhaar Biometric Lock and Why You Need It

The Aadhaar Biometric Lock is a security feature that prevents the use of your fingerprint, iris scan, and facial authentication data unless you personally unlock it. Once activated:

• No biometric authentication can proceed without your authorization.

• It protects you from financial fraud, identity theft, and unauthorized access to government or private services.

This lock functions much like a security lock on your smartphone — ensuring that only you control access to your sensitive biometric data.

Risks Mitigated by Biometric Locking:

• Unauthorized bank transactions.

• Fraudulent issuance of SIM cards.

• Misuse during government or third-party identity verifications.

How to Lock Your Aadhaar Biometrics: Three Easy Methods 1. Online via UIDAI Website

• Visit .

• Navigate to ‘My Aadhaar’ → ‘Aadhaar Services’ → ‘Lock/Unlock Biometrics’.

• Enter your Aadhaar number, security code, and click ‘Send OTP’.

• Verify using the OTP received on your registered mobile number.

• Confirm the biometric lock activation.

2. Using the mAadhaar Mobile App

• Download the mAadhaar app from the Play Store or App Store.

• Log in using your registered mobile number and OTP.

• Navigate to the ‘My Aadhaar’ section and select ‘Lock/Unlock Biometrics’.

• Authenticate and activate the lock feature securely through the app.

3. Via SMS to 1947

• Send an SMS: GETOTP to 1947.

• Receive OTP and send a second SMS: LOCKUID to 1947.

• Receive a confirmation SMS indicating successful biometric locking.

Important: Always use the mobile number registered with your Aadhaar for these processes.

What is a VID and Why It Matters

A Virtual ID (VID) is a 16-digit temporary number that can substitute your Aadhaar number for authentication, enhancing privacy. You may need a VID to temporarily unlock biometrics for authentication at banks or service centers. After use, biometrics can be manually re-locked or they may automatically lock within a set period.

Conclusion: Take Charge of Your Aadhaar Security

Activating the Aadhaar Biometric Lock is an essential step towards securing your digital identity. With easy options to lock your biometrics online, through an app, or even by SMS, protecting your Aadhaar has never been simpler. Stay proactive, lock your biometrics today, and safeguard yourself against potential identity and financial fraud.