End-to-end encrypted RCS messaging begins rolling out today for Android and iPhone users

Source: Google Date: 2026-05-11 URL: https://blog.google/products-and-platforms/platforms/android/android-ios-end-to-end-encrypted-rcs-messaging/

Summary

Google and Apple have jointly rolled out end-to-end encryption for cross-platform RCS messaging, beginning in beta on May 11, 2026. Android users on the latest Google Messages and iPhone users on iOS 26.5 with supported carriers will see conversations automatically upgraded to E2EE — the same lock-icon UI previously used for Android-only encrypted RCS. This is the first time cross-platform default E2EE has landed at the carrier SMS-replacement layer, replacing the unencrypted gap that persisted since RCS was introduced.

Implications

• Platform messaging consolidation thread. Cross-platform E2EE for RCS closes the last major argument for keeping iMessage exclusive; Apple’s participation signals the regulatory and competitive pressure to interoperate at the secure-messaging layer is now resolved at parity with Signal/WhatsApp.
• Enterprise messaging posture. Default encryption at the carrier layer shifts the baseline for regulated industries — SMS-based workflows that were previously plaintext are now encrypted by default without user opt-in, which matters for compliance posture assessments.
• AI agent communication surface. As RCS becomes the default rich channel between Android and iOS, it’s also the surface where AI agents (Google’s Gemini in Messages, Apple’s Apple Intelligence) exchange structured messages. E2EE at this layer constrains what server-side AI can observe, reshaping where model inference can run.