Aadhaar has become an important identity document for banking, government services, authentication and digital verification in India. But that does not mean you should automatically share a photocopy or your complete 12-digit Aadhaar number whenever someone asks for identification.
UIDAI provides several security features that can help Aadhaar holders limit unnecessary exposure of their Aadhaar details.
Two useful options are Masked Aadhaar and Virtual ID (VID). UIDAI also provides features such as biometric locking and Aadhaar authentication history to give users more control over their Aadhaar security.
What Is Masked Aadhaar?
Masked Aadhaar is an electronic version of Aadhaar in which the first eight digits of the 12-digit Aadhaar number are hidden.
Only the last four digits remain visible.
For example, instead of showing:
1234 5678 9012
a Masked Aadhaar would display:
XXXX XXXX 9012
This can be useful when an organisation needs to see your Aadhaar document but does not require the complete Aadhaar number.
UIDAI currently provides a free option to download Masked Aadhaar through its official MyAadhaar services. Mobile OTP authentication is required.
Why Use Masked Aadhaar?
Before sharing a complete Aadhaar copy, check whether the organisation accepts a Masked Aadhaar.
Using it can help reduce the unnecessary sharing of your full Aadhaar number.
However, whether Masked Aadhaar is acceptable depends on the specific service and its requirements.
What Is Virtual ID or VID?
Virtual ID (VID) is a temporary 16-digit number that can be used instead of your Aadhaar number for supported authentication services.
The main advantage is that you can use the VID where supported without directly providing your actual Aadhaar number.
UIDAI lists Generate Virtual ID as an Aadhaar security service and currently provides the facility through its official services.
If you generate a new VID, the previous VID becomes invalid under the applicable UIDAI system.
When Can You Use VID?
If a bank, service provider or other organisation offers Aadhaar authentication using VID, you can consider using the VID instead of directly sharing your Aadhaar number.
Keep in mind that not every organisation or service may support VID, so always check the authentication options available for the particular service.
Masked Aadhaar vs VID: What’s the Difference?
The two features serve different purposes.
| Feature | Masked Aadhaar | Virtual ID |
|---|---|---|
| Format | Aadhaar document | 16-digit temporary ID |
| Aadhaar number shown | Only last 4 digits | Actual Aadhaar number is not shared |
| Main use | Sharing an Aadhaar document | Supported authentication/e-KYC |
| Availability | UIDAI services | UIDAI services |
| OTP required | Yes | Yes |
The right option depends on what the organisation actually requires.
Another Aadhaar Security Feature: Lock Your Biometrics
UIDAI also provides a Biometric Lock/Unlock facility.
When biometric locking is enabled, Aadhaar authentication using biometric modalities such as fingerprint, iris and face is restricted. UIDAI says the facility is intended to strengthen the privacy and confidentiality of Aadhaar biometric data.
You can temporarily unlock your biometrics when biometric authentication is required.
This can be particularly useful if you do not regularly need biometric authentication.
How to Download Masked Aadhaar
Downloading a Masked Aadhaar is relatively simple.
Steps to download Masked Aadhaar:
- Visit the official UIDAI/MyAadhaar website.
- Choose the Aadhaar download option.
- Enter the required Aadhaar details.
- Complete OTP verification using your registered mobile number.
- Select the Masked Aadhaar option, where available.
- Download the electronic copy.
Always use UIDAI’s official website or official Aadhaar services instead of websites claiming to provide Aadhaar services.
How to Generate a Virtual ID
You can generate a VID through UIDAI’s Aadhaar services.
After completing the required authentication, UIDAI generates a 16-digit Virtual ID associated with your Aadhaar.
The VID can then be used for supported authentication services instead of directly revealing your Aadhaar number.
If you generate a new VID, the earlier VID becomes invalid according to the applicable UIDAI system rules.
Never Share Your Aadhaar OTP
Your Aadhaar OTP is an important part of online authentication.
Never share an OTP with someone simply because they claim to be calling from:
- A bank
- UIDAI
- A government department
- A courier company
- A telecom company
- Another service provider
If someone asks you to tell them an Aadhaar OTP over the phone, treat it as a potential fraud warning.
Enter the OTP only on the official website or application where you personally initiated the transaction.
Check Your Aadhaar Authentication History
If you are worried that someone may have used your Aadhaar for authentication without your knowledge, UIDAI provides an Authentication History facility.
This allows Aadhaar holders to review authentication activity associated with their Aadhaar. UIDAI also provides authentication-history functionality through its Aadhaar services and Aadhaar App.
If you notice an authentication transaction that you do not recognise, use UIDAI’s official grievance and support channels rather than responding to an unknown caller or message.
Do You Really Need to Share Your Full Aadhaar?
One simple security habit is to stop treating a full Aadhaar photocopy as the default identity document for every situation.
Before sharing Aadhaar, ask what the organisation actually requires:
- Full Aadhaar
- Masked Aadhaar
- Virtual ID
- Another officially accepted identity document
The correct option will depend on the particular service and its authentication requirements.
Quick Aadhaar Safety Checklist
Keep these Aadhaar security tips in mind:
- Use Masked Aadhaar when a full Aadhaar number is not required.
- Use VID when the service supports Virtual ID authentication.
- Never share your Aadhaar OTP with anyone.
- Consider locking your biometrics when you do not need biometric authentication.
- Download Aadhaar only through official UIDAI services.
- Avoid sending Aadhaar documents to unknown WhatsApp numbers or email addresses.
- Check your Aadhaar authentication history if you suspect unauthorised activity.
- Be cautious when an unknown person urgently asks for your Aadhaar details or OTP.
FAQs
Is Masked Aadhaar safe to use?
Masked Aadhaar hides the first eight digits of your Aadhaar number and displays only the last four digits. It can help reduce unnecessary exposure of the full Aadhaar number when the organisation accepts it.
What is a 16-digit Virtual ID?
A Virtual ID, or VID, is a temporary 16-digit number provided by UIDAI that can be used instead of the Aadhaar number for supported authentication services.
Can I use VID everywhere instead of Aadhaar?
No. VID can be used where the particular authentication service supports it. You should check the requirements of the organisation or service.
Should I share my Aadhaar OTP with a bank employee?
You should not disclose your Aadhaar OTP to another person over a call or message. Enter OTPs yourself on the official service where you initiated the transaction.
Can I lock my Aadhaar biometrics?
Yes. UIDAI provides a biometric lock/unlock facility. When biometrics are locked, biometric authentication using the supported biometric modalities is restricted.
How can I check whether my Aadhaar was used?
UIDAI provides an Aadhaar Authentication History service that allows users to review authentication activity.
Conclusion
Your Aadhaar number is an important identity credential, so it is worth being careful about where and how you share it.
Instead of automatically sending a complete Aadhaar copy, check whether Masked Aadhaar or Virtual ID is accepted for the service you are using.
You can also strengthen your Aadhaar security by using biometric locking, checking authentication history and protecting your OTP.
Most importantly, use only official UIDAI services for downloading Aadhaar, generating VID and managing your Aadhaar security settings.
