Apple has introduced end-to-end encryption for RCS messaging in the iOS 26.5 update [1].

This change closes a long-standing privacy gap between Apple's encrypted iMessage service and the standard RCS protocol used for conversations with Android users. By securing "green-bubble" messages, the company provides a higher level of cross-platform security for users who previously relied on unencrypted texts.

The feature was first announced on May 4 [1] and continued to roll out through May 11 [2]. While the update brings encryption to the RCS standard, Apple is currently labeling the functionality as a beta feature [2]. Users can enable or disable this security layer by navigating to Settings > Messages > RCS Messaging [1].

Previously, end-to-end encryption was reserved for iMessage, the proprietary service used exclusively between Apple devices. RCS, or Rich Communication Services, serves as the modern replacement for SMS and allows for high-resolution media, and read receipts. However, the security of these messages varied depending on the carrier and device until the release of version 26.5 [1].

The deployment of this feature allows iPhone users to maintain privacy standards when communicating outside the Apple ecosystem. Because the feature is in beta, the company may adjust the implementation based on user feedback and stability tests [2]. The update is available for iOS devices worldwide [3].

This move follows years of pressure from regulators and consumers to standardize messaging and improve security across different mobile operating systems [3]. By integrating encryption into the RCS framework, Apple ensures that the content of messages remains private from third parties, including service providers.

Apple has introduced end-to-end encryption for RCS messaging in the iOS 26.5 update.

The introduction of RCS encryption signifies a shift in Apple's approach to the 'walled garden' of iMessage. By securing cross-platform communication, Apple is reducing the incentive for users to switch to third-party encrypted apps like Signal or WhatsApp for Android-to-iPhone conversations, while simultaneously addressing regulatory concerns regarding interoperability and consumer privacy.