WhatsApp was founded on the simple idea that what you share with friends and family remains between you. We added end-to–end encryption to WhatsApp five years ago. This protects more than 100 million messages per day that travel between more then 2 billion users.
While end-to-end encrypted messages that you send and receive are saved on your device’s memory, many people want to be able to backup their conversations in the event of a loss. We are now offering an optional layer of security that will protect backups stored on Google Drive and iCloud. This level of security is unparalleled in global messaging services.
You can now secure your end-to-end encrypted backup with either a password of your choice or a 64-digit encryption key that only you know. WhatsApp and your backup service provider won’t be able read or unlock your backups.
With more than 2 million users, we are thrilled to offer more options to protect your privacy. We will slowly roll out this feature to users who have the latest version WhatsApp. More information about how you can protect your chat backups with end-to-end encryption on iOS and Android can be found here, and more information about how we built it can be found here.