End-to-End Encryption for Local Backups is being worked on by WhatsApp
WABetaInfo reports that WhatsApp is extending end-to-end encryption to local backups. The instant messaging app already has the same kind of encryption for chats and calls initiated through its platform.
However, by bringing end-to-end encryption to local backups, WhatsApp would eventually restrict third parties from accessing its locally stored backups on smartphones. The feature could be helpful to protect conversations from hackers who could remotely gain access to WhatsApp backups stored on the device.
It is important to note that WhatsApp presently encrypts local backups to keep them protected from strangers. However, these backups aren't end-to-end encrypted, meaning they could be decrypted on a third-party device once they are being accessed by a bad actor.
A screenshot has been posted by WABetaInfo that suggests the end-to-end encryption would be available for both cloud and local backups at the same time.
WhatsApp has been making headlines in recent months for developing end-to-end encryption for Google Drive backups. However, that support has yet to be made available to the general public.