Apple will soon support end-to-end encrypted Rich Communication Services (RCS) messaging between iPhones and Android devices due to updated RCS specifications announced by the GSM Association. This new capability is set to enhance security and privacy in cross-platform messaging.
Apple to enable end-to-end encryption for RCS messaging across platforms
The GSM Association revealed that the latest RCS standard incorporates end-to-end encryption (E2EE) based on the Messaging Layer Security (MLS) protocol, allowing for interoperable encryption between different platform providers for the first time. Work on enabling E2EE for messages sent between Android and iPhone began in September 2023.
Apple spokesperson Shane Bauer stated, “End-to-end encryption is a powerful privacy and security technology that iMessage has supported since the beginning, and now we are pleased to have helped lead a cross industry effort to bring end-to-end encryption to the RCS Universal Profile published by the GSMA.” He added that Apple will integrate support for end-to-end encrypted RCS messages into future software updates for iOS, iPadOS, macOS, and watchOS.
Apple introduced RCS support to the iPhone with an iOS 18 update in September 2023. Although Apple’s proprietary iMessage system has always supported E2EE, this feature was absent in RCS messaging prior to the updated specifications, which did not allow for cross-platform support. Google Messages also provides E2EE by default for RCS texts but only for conversations among Google Messages users, excluding interactions with iMessage users or other non-Google RCS clients.
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Google spokesperson Ed Fernandez highlighted his company’s commitment to secure messaging, noting that Google Messages has offered E2EE for RCS messaging for years. He expressed excitement about the recent GSMA specification update and the potential to expand user protection for cross-platform RCS messaging.
The GSMA’s release of the new RCS Universal Profile 3.0, which includes end-to-end encryption, confirms a significant milestone in RCS messaging. While a specific timeline for when Apple will enable this feature for customers has not been shared, it represents a considerable advancement in securing communications across devices.
RCS, or Rich Communication Services, enhances messaging functionalities by enabling capabilities such as typing indicators, emoji reactions, read receipts, and support for higher-resolution photo and video attachments. With the incorporation of E2EE, users can expect greater privacy and security in their messaging experiences.
As stated by Tom Van Pelt, the Technical Director of GSMA, RCS will be the first large-scale messaging service to support interoperable E2EE between different providers, alongside other features like SIM-based authentication, aimed at providing enhanced privacy and protection against scams and fraud.
Featured image credit: Samuel Angor/Unsplash
