Apple has taken a meaningful step forward in cross-platform messaging privacy. With Apple iOS 26.5, the company is introducing end-to-end encryption for RCS messages sent between iPhones and Android devices, a security upgrade that many users have been waiting for since RCS support first arrived on iPhones back in 2024.
Apple confirmed the change through its official iOS 26.5 release candidate changelog, which states that “end-to-end encrypted RCS messaging (beta) in Messages is available with supported carriers and will roll out over time.”
What Is RCS and Why Does Encryption Matter?
RCS stands for Rich Communication Services. It is a modern messaging protocol designed to replace the aging SMS standard. RCS brings features like high-resolution photo and video sharing, typing indicators, read receipts, and better group chat support. These features now work across conversations between iPhone and Android users.
Apple added RCS support with iOS 18 in 2024. However, at that time, messages exchanged between the two platforms were not end-to-end encrypted.
The Gap That Needed Closing
End-to-end encryption means that only the person sending a message and the person receiving it can read its contents. No carrier, no tech company, and no outside party can intercept or access the conversation. Without this protection, RCS messages between iPhone and Android were more exposed than messages sent within iMessage or within Google Messages between two Android phones. That gap is now being closed.
It is also worth knowing that this feature was tested during the iOS 26.4 beta cycle earlier this year, but Apple quietly pulled it before the final release. It returned in the iOS 26.5 beta and has remained throughout the testing process, signaling that Apple was confident enough this time to carry it through to a public release.
How Apple Is Rolling Out This Feature
Not every user will get this protection the moment they update their device. Both the sender and the receiver need to be on a carrier that supports the updated RCS standard for encryption to actually take effect. Apple has noted it will publish a list of supported carriers on its official webpage ahead of the public launch, though that information was not yet available at the time of writing.
It is also important to know that this update is not limited to iPhone alone. Apple confirmed that end-to-end encrypted RCS messaging is coming to iPadOS 26.5, macOS Tahoe 26.5, and watchOS 26.5 as well, bringing consistent privacy protection across the entire Apple ecosystem.
What You Will See on Your Phone
Once the feature is active, the Messages app on iPhone will display a lock icon. It will appear alongside the word “Encrypted” inside the chat. This gives users a clear, visible confirmation that their conversation is protected.
On the Android side, Google Messages will show a similar lock indicator for cross-platform chats. This is consistent with what Android users already see when messaging other Android users with encryption enabled.
The setting is turned on by default. Users do not need to manually activate it. To confirm it is enabled, go to Settings, then Messages, then RCS Messaging. There, a toggle for end-to-end encryption will be visible.
The Standard Behind the Security
This encryption does not rely on a proprietary solution from either Apple or Google. Instead, it is built on RCS Universal Profile 3.0. This is a standard published by the GSMA, the global body that oversees the RCS protocol.
The GSMA introduced end-to-end encryption support in this updated profile in 2025. Apple worked alongside the organization to implement it using the Messaging Layer Security protocol.
When Apple first acknowledged the GSMA update, it confirmed encrypted RCS support was coming. The company said it would arrive across its platforms through future software updates. iOS 26.5 is the update where that promise is fulfilled.
What Stays the Same
Even with encryption now in place, RCS messages between iPhone and Android will still appear as green bubbles on iOS. The visual distinction between iMessage and RCS conversations is not changing. What is changing is the level of privacy protection behind those green bubble conversations, which now stands on equal footing with the encryption that iMessage and Google Messages have long offered within their own ecosystems.
The stable public release of iOS 26.5 is expected within the coming days. Once the update is available, iPhone users should check their RCS Messaging settings and watch for the lock indicator in supported chats. Android users should also make sure they are running the latest version of Google Messages to ensure their end of the conversation is ready when the feature reaches their carrier.
