Apple Tests Encrypted RCS Messaging in iOS 26.4 Beta
Apple has initiated testing of end-to-end encrypted Rich Communication Services (RCS) messaging in the latest beta versions of iOS 26.4, iPadOS 26.4, and macOS Tahoe 26.4. This development aims to enhance the security of cross-platform messaging between iPhone and Android users, aligning it with the privacy standards of iMessage.
Historically, encryption was fully implemented within iMessage and partially in Android-to-Android RCS chats. However, messages exchanged between iPhone and Android devices lacked comprehensive protection. With this update, Apple is working to bridge this security gap, ensuring that cross-platform communications achieve a uniform level of security.
According to Apple’s developer release notes, RCS end-to-end encryption is now available for testing in this beta, while also clarifying that the feature is not shipping in this release and will be available to customers in a future software update.
Enhancements in the Messages App
The Messages app now displays a lock icon when encryption is active, mirroring the visual indicator used for iMessage conversations. Additionally, a new toggle has been introduced in the Settings menu, which is enabled by default. Access to this feature is being rolled out gradually during the testing phase.
Currently, the encrypted RCS feature functions exclusively between Apple devices utilizing RCS instead of iMessage, such as when iMessage is disabled. Cross-platform encryption with Android devices is anticipated to be available once carriers and partners complete the necessary support.
Apple is also preparing support for RCS Universal Profile 3.0, developed in collaboration with the GSM Association. This update will enable features like message editing, deletion, and inline replies across platforms once fully deployed.
Availability and Rollout
The beta release offers limited testing, and not all users will have immediate access. Apple has stated that encrypted conversations can’t be read while they’re sent between devices, confirming the objective of achieving true end-to-end protection.
Public availability is planned for a future iOS 26 update following the completion of testing and the activation of carrier compatibility. The developer beta has been released first, with a public beta expected to follow.
RCS was initially introduced on iPhone with iOS 18.1, bringing features such as typing indicators, read receipts, and high-quality media sharing. The addition of encryption serves as the final component required to make standard messaging secure, regardless of the device brand.
