After introducing end-to-end encryption in mobile chats last year, WhatsApp has silently added new security features to its iCloud backup feature. The iCloud backup encryption has been a feature for some time but it has come out in the open only now. The messages and chats in iCloud backups are uploaded on Apple servers.
“Without any fanfare, it added a unique encryption key created by the WhatsApp app, rather than just relying on the iCloud Drive to protect customer data,” the report added. This comes on top of the end-to-end encryption rolled out for one billion WhatsApp users on mobile platforms. “When a user backs up their chats through WhatsApp to iCloud, the backup files are sent encrypted,” a WhatsApp spokesperson was quoted as saying.