The new specifications will use RCS Universal Profile 3.0, a cross-platform encryption protocol that will make it easier for iPhones and Android devices to identify each other. The profile allows for richer deep linking,

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.

Phone users will soon be able to send end-to-end encrypted RCS messages to Android users. This is thanks to the new RCS standard, Universal Profile 3.0, which includes end-to-end encryption based on the Messaging Layer Security protocol.