Cyber criminals across India have increasingly targeted ordinary citizens by misusing thumb impressions to siphon money through Aadhaar Enabled Payment System channels. Securing your biometric records is the single most effective way to protect your hard-earned savings from illegal micro-ATM transactions. Learning how to lock Aadhaar biometrics online takes less than five minutes and gives you complete control over your identity credentials.
To lock Aadhaar biometrics online, log into the official UIDAI myAadhaar portal using your 12-digit Aadhaar number and the mobile OTP. Navigate to the Lock Unlock Biometrics tile, agree to the terms, and confirm the action. Once enabled, all fingerprint and iris authentications stop instantly, while standard mobile OTP logins continue working normally.
What to have ready before you begin
Before you open the portal or launch the mobile application, make sure you have all necessary details ready. If your setup is incomplete, the session will time out and force you to restart the process from scratch.
- Active registered mobile number: Your mobile phone must be able to receive text messages immediately. UIDAI sends a six-digit one-time password that expires within ten minutes. If you no longer have access to the mobile number registered with your Aadhaar, you cannot complete this process online and must visit an Aadhaar Seva Kendra first.
- 12-digit Aadhaar number: Keep your physical card or soft copy in front of you so you can enter the correct digits and verify your details without guessing.
- 16-digit Virtual ID (VID): While logging into the portal directly requires your Aadhaar number, unlocking your records manually through SMS or certain external validation windows requires a valid VID. It is smart to note down your current VID from the myAadhaar dashboard as soon as you log in.
- Stable internet connection: Avoid performing biometric locks or unlocks on unstable public Wi-Fi networks. A dropped connection during authentication can leave your session in an uncertain state.
- Official mAadhaar application (optional): If you prefer managing this on your phone rather than a desktop browser, download the official mAadhaar app developed by Unique Identification Authority of India from Google Play Store or Apple App Store. Avoid any third-party app that claims to offer Aadhaar security tools.
How to lock Aadhaar biometrics online step by step
The Unique Identification Authority of India provides a straightforward dashboard on its official site at https://uidai.gov.in. Follow these exact steps in order to lock your fingerprint and iris authentication.
- Visit the official UIDAI myAadhaar portal: Open your web browser and navigate to the official UIDAI website. Click on the My Aadhaar menu and select Lock/Unlock Biometrics, or head directly to the myAadhaar login screen. Check the browser address bar to verify that the URL belongs to a genuine government domain before proceeding.
- Log into your resident dashboard: Click on the blue Login button. Type your 12-digit Aadhaar number, complete the visual captcha verification, and click Send OTP. Enter the six-digit code received on your registered mobile number and click Login to access your personal dashboard.
- Select the Lock/Unlock Biometrics service: Scroll through the service cards on your dashboard until you see the option labeled Lock/Unlock Biometrics. This card displays an open padlock symbol if your biometrics are currently active. Click on the arrow inside the card.
- Review the terms and confirmation details: The portal will display an informational screen explaining what happens when your biometrics are secured. It clearly explains that locking blocks fingerprint, iris, and facial recognition, but leaves OTP-based verification completely active. Click Next to continue.
- Confirm your lock request: On the confirmation screen, tick the checkbox stating that you understand that after locking your biometrics, you will not be able to perform biometric authentication until you unlock them. Once checked, click the Next button.
- Verify the success screen: A green checkmark screen will appear with the message confirming that your biometrics have been locked successfully. From this exact second, no person or banking agent can use your cloned fingerprints to withdraw cash or authenticate agreements.
If you prefer using your smartphone, the steps inside the official mAadhaar mobile app follow the same pattern. After registering your profile in the app with an OTP, tap the three dots in the top corner, choose Biometric Settings, check the box, and confirm the lock.
What are the fees in 2026?
Locking and unlocking your Aadhaar biometrics is completely free. UIDAI does not charge a single rupee on its official portal or inside the mAadhaar mobile app for toggling your biometric security status. You can lock your records today, temporarily unlock them tomorrow for a property registration, and lock them again without incurring any service fee.
| Platform or Method | Official Fee | Frequency Limit |
|---|---|---|
| UIDAI myAadhaar Portal | Rs 0 (Free) | Unlimited times |
| mAadhaar Mobile App | Rs 0 (Free) | Unlimited times |
| SMS Service (1947) | Standard SMS charges apply | Unlimited times |
| Aadhaar Seva Kendra (In-person) | Rs 0 (Free for lock/unlock) | Unlimited visits |
Be cautious of cyber cafes or fraudulent third-party websites asking for fees between Rs 50 and Rs 200 to secure your card. These unauthorized portals often collect your personal details, Aadhaar number, and OTP under the pretext of providing security, which actually puts your accounts at severe risk. Always perform this operation directly on the official government website yourself.
Where do people get stuck and how to get past it?
The single most frustrating issue people encounter occurs when they visit a bank branch, telecom store, or registrar office and discover their thumb impression fails with a generic error code. In most cases, the operator assumes the biometric scanner is faulty or that the customer's fingerprints have degraded with age. In reality, the customer locked their biometrics weeks ago and forgot about it, or they do not know how to unlock them temporarily.
When you need to verify your identity for a new SIM card, a bank KYC update, or a property deed at a Sub-Registrar office, do not permanently unlock your account. Instead, use the Temporary Unlock feature. Log into the portal, click the Lock/Unlock Biometrics tile, select Unlock Biometrics, and choose Unlock biometrics temporarily.
This temporary release lasts for approximately ten minutes. During this brief window, you can press your thumb on the official scanner, complete your transaction, and walk away. Once the ten minutes expire, UIDAI automatically re-locks your biometrics without requiring you to log back in. This prevents the common disaster where people intend to secure their profile later in the evening but forget, leaving their bank accounts unprotected for months.
Another major bottleneck occurs when the UIDAI login OTP fails to arrive on your smartphone. This frequently happens during peak government office hours between 11 AM and 3 PM. If the message does not arrive within two minutes, avoid clicking the resend button repeatedly. Wait five minutes, clear your browser cache, or try accessing the portal after 7 PM when server traffic across Gujarat and the rest of the country drops significantly.
Important questions readers ask about biometric security
Will locking my biometrics stop my bank OTP and UPI payments?
No, locking your biometrics has zero effect on your bank OTP, SMS alerts, UPI payments, or debit card transactions. It only prevents machines from reading your physical body markers, namely your thumbprints, fingerprints, facial scans, and iris patterns. Everything that relies on your phone number or net banking continues working normally.
Can I still use my Aadhaar for income tax returns and DigiLocker?
Yes, all online services that verify your identity through a mobile OTP remain fully functional. When you e-verify your Income Tax return or fetch your driving licence into DigiLocker, the system sends an authentication code to your phone. Because OTP authentication is completely separate from biometric authentication, your locked status will not block these services.
What should I do if money was already stolen via AePS?
If you suspect an illegal withdrawal took place without your knowledge, lock your biometrics immediately to prevent further debits. Next, call your bank customer care to freeze AePS transactions on your savings account. Finally, report the incident immediately on the National Cyber Crime Reporting Portal at https://cybercrime.gov.in or dial the national cyber helpline at 1930 within the golden hour to freeze the transferred funds.
Final checklist before you close your browser
Before you log out of the UIDAI dashboard, run through this quick checklist to ensure your account is completely secure and accessible for future requirements.
- Check that the padlock icon on your myAadhaar resident dashboard is closed and marked with a red lock badge.
- Generate and copy your latest 16-digit Virtual ID (VID) from the dashboard, saving it in a secure note on your phone.
- Ensure your current email address is linked alongside your mobile number so you receive transactional alerts if anyone attempts an authentication.
- Inform family members, particularly elderly parents whose thumbprints are often targeted by local fraud networks, so they understand why their biometrics are locked.
- Click the Logout button in the top right corner of the portal to close your secure session cleanly rather than just closing the browser tab.
Official sources
Rules, fees and deadlines change. Confirm the current details on the official source before you act.
