Sharing Aadhaar and ID Documents Without Putting Yourself at Risk
The first time I went to rent a flat after moving cities, three different people asked me for an Aadhaar copy in the first week — the broker, the landlord, the gas connection guy. I gave a clean photocopy to each, signed across the front, and called it a day.
A year later I learned that I should have been using a Masked Aadhaar instead. My broker had kept the photocopy in a folder somewhere. Who knows where it ended up after that.
Sharing ID documents is unavoidable in India. Sharing them carelessly isn't.
Use Masked Aadhaar wherever possible
The official UIDAI portal lets you download a Masked Aadhaar that hides the first eight digits of your Aadhaar number, showing only the last four. For most uses — KYC for shops, telecom recharges, address proof for societies — this is fully accepted and far safer than sharing the full number.
If you have an Android phone, the mAadhaar app generates this on demand.
Always sign across the document
When you share a physical or scanned copy, write across the document something like: "For [purpose], submitted to [name of recipient], on [date], by [your signature]." This makes the copy useless for any other purpose. If a fraudster tries to use the same copy elsewhere, the visible note shows it was meant for a specific recipient and date.
Do this even on the digital copy you email. Some PDF tools let you stamp text across the file before sending.
Don't share full ID documents over WhatsApp casually
WhatsApp messages get backed up to clouds, forwarded by mistake, screenshotted, archived in the recipient's gallery for years. The same file you sent in a hurry to one person can travel further than you imagine.
If you must share, share the masked version, mark it clearly, and ask the recipient to delete it after their work is done.
Be very suspicious of "send me your Aadhaar to verify" messages
No bank, no government department, no employer asks you to send your Aadhaar via WhatsApp or email to "verify your identity." Verification happens in their own secure portals or in person.
OTPs linked to your Aadhaar are even more sensitive. An Aadhaar OTP can authorise eKYC, biometric updates, or linking your Aadhaar to a new account. Sharing one with a stranger is essentially handing over a key to your identity.
Lock your Aadhaar biometrics if you're not using them often
UIDAI offers a feature where you can lock your biometrics so they can't be used for any authentication request. You unlock them temporarily when you need them. If you're a regular salaried person who rarely uses biometric authentication, this is one of the simplest, least-known protections available.
PAN, passport, driving licence
The same principles apply. Sign across copies. Mark the purpose. Use redaction tools to black out parts that aren't needed (e.g. share only the page of your passport with the photo and details, not pages full of old visa stamps).
Identity documents are precious. They take a phone call to share and years to recover from misuse.