The latest RCS standard enables end-to-end encrypted (E2EE) RCS messages between iPhone and Android users.The standard is based on the Messaging Layer Security (MLS) protocol, ensuring interoperable encryption.Apple has confirmed adoption of the RCS Universal Profile 3.0 specification, including E2EE and other iMessage-like enhancements.The integration of RCS encryption may lead to improved compatibility and security for cross-platform messaging.