Google has been testing the ability to send texts, files and photos through its Messages service with end-to-end encryption for some time. Now, it has announced that it is to become available for the stable version of this app. The Mountain View giant claims that it results in messaged content that stays between 2 people in the same chat.
https://www.notebookcheck.net/Google-brings-end-to-end-encryption-for-the-Messages-app-out-of-beta.545957.0.html