WhatsApp is the most popular messaging platform on the planet, which means people are using it for all sorts of purposes. In August, WhatsApp started working on a feature for people who wish to put the app behind an extra layer of security. Now, Fingerprint Unlock is ready for primetime and available in the latest stable build.
Fingerprint Unlock was first introduced in beta build version 2.19.221. The feature allows WhatsApp to require a fingerprint before it can be opened. It uses the same fingerprint that you use to unlock your phone. So if someone is able to get into your phone through other methods, at least they won’t be able to open the app and go through your private conversations.
The feature comes with a number of options as well. You can set WhatsApp to automatically lock immediately upon closing, after 1 minute, or after 30 minutes. This is handy if you don’t want to be scanning your fingerprint every single time you open the app. There is also the option to still content to be displayed in notifications if you don’t need to totally lock down the app. To set it up, got to Settings > Account > Privacy > Fingerprint lock.
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Source: WhatsApp
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