WhatsApp has no password protection but the service allows you to secure your biometric authentication messages.If you activate this feature you will need to unlock the application with your fingerprint to see chats.Here's how to make the digital fingerprint lock on the Android messaging application.
What are the steps you need to take to make the digital fingerprint lock
First, open the WhatsApp app.Touch the menu (the three vertical points) in the upper right corner, then press the settings.Then go to your account and select Privacy Information.Now it runs down to see all the options.
Next, you must reach "fingerprint lock" and switch on a fingerprint on activated.After you have done this, check using the fingerprint to activate the function.
Once activated, you will be able to set one hour for which the application automatically stuck.There are three options in automatic lock settings.
The first is "immediately": blocks WhatsApp as soon as you come out of the app.You will need to use your fingerprint each time to see the messages.The second option is after a minute - you can block the application one minute after leaving the application.
Last option is after 30 minutes: Block WhatsApp at half hour after leaving app.Use this if you have to secure your account but you don't want to unlock every time.
You can also turn off the display of messages in the notification bar.Switch "Displays the content in notifications" disabled to ensure that messages do not appear on the lock screen or notification panel.
You will still be able to make audio and video calls even when WhatsApp is blocked because the function mainly aims to secure your messages.Fingerprint blocking provides such necessary privacy checks in your WhatsApp account and, if you are worried that someone else is reading your messages, now you know how to configure them and use them.
How to protect your WhatsApp web chats
WhatsApp has launched a new feature where you will need to use biometric authorization before you can connect a device to WhatsApp Web.You don't have to configure anything.The function is already active on the app and if you want to connect a new device to use WhatsApp Web, you will need biometric authentication.
Thus, open the messaging app and give them to the menu in the upper right corner.Click on WhatsApp Web and choose "connect a device".Now use your fingerprint and use the QR code reader to scan the QR code on the device you connect.
After authorizing a device, WhatsApp Web will be accessible without password or PIN, as long as that device is connected to your account.