WaBetaInof reported that the feature is under development and is soon going to release for some beta testers in the future. However, it is also mentioned that the screen lock feature will be optional since not everyone would not want to opt for it. The best thing about this feature is that users would be able to choose when the app should require a password. With this, a user will get more control over their WhatsApp chats. Moreover, whatever password would be selected by the user, will not be shared by WhatsApp, instead, it will be saved locally. When it comes to passwords, a user would be able to choose a numeric or fingerprint sensor. Moreover, it is also expected that users would be able to lock the app by using Touch ID on Mac with a fingerprint sensor. The question arises that what will happen if the user forgets the screen lock password. The report suggests that if such a thing happens, the user will simply log out of the WhatsApp desktop and log in back again.
