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iOS 26 Code Points to Apple Testing End-to-End Encryption for RCS

References to the MLS protocol in early builds suggest interoperable privacy for iPhoneAndroid texting is nearing.

Overview

  • Apple has said it will add end-to-end encrypted RCS messaging in future updates across iOS, iPadOS, macOS, and watchOS.
  • Strings reading “RCS Encryption Enabled” and “RCS Encryption Opt-in Test Enabled” were found in iOS 26 betas, indicating active testing.
  • GSMA’s Universal Profile 3.0 specifies Messaging Layer Security for RCS, enabling encrypted chats between different client implementations.
  • Reporters caution the feature may not ship with iOS 26’s initial release and could arrive in a subsequent update.
  • Early analysis suggests Apple may focus on encryption first and leave some RCS niceties like group icons and mentions for later.