The users will need to keep a password or a key for their backup.
This new feature will protect the users backup from third parties.
You will need to keep a password or key for the encrypted backup.

Facebook CEO Mark Zuckerberg announced the rollout of the feature with a post on his page.
How to Enable End-to-end Encryption for Whatsapp Backup?
End-to-end encryption for cloud backups has been rolled out for both Android and iOS users around the world.

To get this feature, double-check you have the latest version of Whatsapp on your gadget.
Then follow the instructions given on the screen.
At last, hit Done and wait for few seconds.

Only you will know this password, so no one else will be able to get into the backups.
