Whatsapp , the most widely used IM application in the world, wants to continue to improve application security. For this reason, it tests fingerprint authentication in Android as detailed in the WABetaInfo portal. Version 2.19.3 of the application will add this feature and thus protect access to the Wattab via a fingerprint Your fingers.
This update comes after you know that Facebook is also working on the application, but in the iOS version, Face ID and the touch-technology technology used by Apple to open the iPhone will also be used to open the wattage. However, none of these functions are available Final because developers continue to work on their development.

The truth is that Wattab has finally started to open it with a fingerprint in Android, as can be seen in the screenshot that WABetaInfo shared on his blog. Specifically there is a new option in the privacy section referring to this type of unlock.

 An important detail to keep in mind is that the fingerprint unlocking system will only be used to protect and access the relay, not for messages and conversations, where encryption is still used from party to party.