Short answer
Treat it as a scam. Banks in Vietnam do ask customers to register face biometrics, but you do it yourself inside the bank's official app or at a branch. The bank will not call to walk you through it, send you a link, or ask you to install another app.
If you are worried about your account, hang up and call the hotline printed on the back of your card, or open the official app you already have.
What to do
- End the call. Don't press any links in texts or chat messages about biometrics.
- Open your bank's official app, the one you downloaded from the app store, and check for any notice there.
- If there is a step to complete, do it inside that app, or visit a branch with your ID card.
- If you clicked a link or installed an app, turn off the internet, call the bank's official hotline and ask them to lock your account.
- Report the number to the police on 113 if you were asked for codes or money.
Signs it is a fake bank call
- The caller knows your name and some of your details, to sound official.
- They say your account will be locked today unless you act now.
- They send a link to a website or a file to install, often ending in .apk.
- They ask you to video call so they can "scan your face", or ask for photos of your ID card.
- They ask for an OTP, a PIN or your password.
- They tell you to keep the call going while you do each step.
Why the fake app is so dangerous
A fake app can ask for permissions that let the scammer read your messages, see your screen and control your phone. With that, they can watch you type your password and take the OTP when it arrives. Your face scan can also be used to pass checks on your account.
The same trick with fake police
A similar call comes from people claiming to be police. They say your ID card has a problem, or that you are linked to a crime, and ask you to install a fake VNeID app from a link. Real police do not handle cases by phone or ask you to install apps from links. Get VNeID only from the official app store, and if you are unsure, go to your local police station in person.
Common questions
Do I really need to register biometrics?
Banks have asked customers to register face biometrics for some transactions. Check what applies to you inside your bank's official app or at a branch, never through a link someone sends.
The text came from my bank's name. Is it real?
Not always. Scammers can fake the sender name on text messages, so a fake can appear in the same thread as real messages. Never trust a link in the text. Open the official app yourself.
I gave them my face scan. What now?
Call your bank's hotline from the back of your card right away and ask them to lock the account. Then change your passwords and report to the police.
Reviewed October 2026