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Facebook testing lock feature on Messenger for iOS

Facebook is working on a new feature that will let users lock their Messenger profile on iOS. The platform will allow iPhone users to lock their Messenger app with Touch or Face ID.

The biometric lock feature is already part of WhatsApp. And it is possible, Facebook is bringing the same mechanism to Messenger as well. It works an extra layer of security for the whole app, while opening it. The lock settings will come with the option to decide the timeframe after which the app should be locked.