According planned, Google has already started enable end-to-end encryption in your messaging and SMS application, Google Messages, although only for those messages that are sent using the chat protocol or RCS.
So chatting with Google Messages now has the same encryption protection as apps like WhatsApp or Signal, so only sender and receiver can decrypt the message. If someone were to intercept you on the road by any means, they would not be able to access your content as they did not have the encryption key.
Encrypted chat messages
Messages from Google, Google’s SMS application pre-installed on many Android phones, is starting to activate end-to-end encryption in its chats. It is easy to recognize when the chat is encrypted, as a text is added with a padlock in the chat itself. Also, the button to send the message incorporates another padlock.
A link is included in the first text to this Google page, where it is explained how this encryption works and its requirements. There it is confirmed that the encryption applies to messages and attachments (such as photos and videos), as well as that both people must have the chat functions active and use them in the conversation (for which a data connection or Wi-Fi is required).
As in other applications, you can check encryption key from the application itself. To do this, in the chat you must touch ⋮ and enter Details. Then touch on Check encryption and you will see a group of twelve numbers of five digits each. These numbers must match on your mobile and that of the other person.
End-to-end encryption is available only for RCS conversations and from person to person, that is, it is not active for the moment for groups. It is easy to distinguish when it is active and when not, since basically the interface is filled with padlocks, and the menu does not appear Check encryption in conversations where it is not available.
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