Ironically, a major uncertainty is E2EE itself. This is now being probed by the UK government, which has decided to use Apple as its test case in a campaign to introduce backdoors into the encryption used in iCloud services. So far, Apple is resisting, choosing to disable security rather than allow surveillance. Talks are reportedly ongoing.

With the GSMA releasing new RCS specs, Apple pledges to 'add support for end-to-end encrypted RCS messages to iOS, iPadOS, macOS, and watchOS in future software updates.'

Apple will, at long last, enabling end-to-end encryption for RCS messages, allowing iPhones and Android phones to text each other with the security encryption provides for the first time.