The GSM Association (GSMA) has formally announced support for end-to-end encryption (E2EE) for securing messages sent via the Rich Communications Services (RCS) protocol, bringing much-needed security protections to cross-platform messages shared between Android and iOS platforms.
To that end, the new GSMA specifications for RCS include E2EE based on the Messaging Layer Security (MLS) protocol
GSMA Confirms End-to-End Encryption for RCS, Enabling Secure Cross-Platform Messaging
Computer Security
,Hacker Security
March 14, 2025