iOS 26.5 Brings End-to-end Encrypted RCS Messaging Between iPhone

For years, text communications between iPhone and Android users lacked robust privacy protection. This significant gap is now being addressed, as Apple and Google have jointly launched a beta rollout of end-to-end encrypted messaging over Rich Communication Services (RCS). This development, arriving with <a href="https://ppl-ai-file-upload.s3.amazonaws.com/web

Starting May 11, 2026, this milestone update began reaching users on both platforms, marking a historic shift in how cross-platform text messages are protected and secured.

RCS is the modern replacement for the outdated SMS standard, bringing features like high-quality media sharing, read receipts, and typing indicators to everyday messaging. Until now, though, RCS lacked the kind of encryption that apps like WhatsApp and Signal have offered for years.

With this update, messages exchanged over RCS between iPhone and Android devices are now locked down end-to-end, meaning no one in between can read what is being sent during transmission.

Analysts at Apple noted that this cross-industry effort was driven by a shared goal of making mobile communication more private by default.

The company confirmed that encryption is enabled automatically for both new and existing RCS conversations, requiring no manual setup from users. A new lock icon will appear inside RCS chats to let users know their messages are fully protected in real time.

The rollout is currently in beta. iPhone users need to be running iOS 26.5 with a supported carrier to access the feature, while Android users need the latest version of Google Messages. Both Apple and Google have said the wider rollout will happen gradually over the coming weeks as more devices and carrier networks are confirmed to support the new standard.

iOS 26.5 Brings End-to-end Encrypted RCS Messaging

This development carries significant weight in the world of digital privacy. Cross-platform messaging has historically been a weak point for everyday users who do not rely on third-party apps. Now, billions of people who simply use the default messaging apps on their phones will benefit from the same level of protection once only available through specialized software designed for security.

The encryption standard powering this update is based on the Messaging Layer Security protocol, known as MLS, which was introduced as part of the RCS Universal Profile 3.0 specification published by the GSMA. The GSMA finalized its end-to-end encryption specification in early 2025, laying the groundwork for what Apple and Google have now deployed in this beta release.

MLS is designed to handle secure messaging at scale, including in group conversations, which makes it well suited for a platform like RCS that serves hundreds of millions of users worldwide. The protocol ensures that messages are encrypted on the sender’s device and can only be decrypted on the recipient’s device. No intermediate server, carrier, or third party can access the content during transmission.

This makes RCS the first large-scale messaging service to support interoperable end-to-end encryption across different client implementations from different providers, a technical achievement that has been years in the making.

What This Means for Everyday Users

For the average person, the change is seamless. Users do not need to download a new app, change any settings, or even know what MLS stands for. The update rolls out automatically in the background, and the lock icon in the chat window is the only visible sign that a conversation is now protected.

This matters because a large share of daily text conversations happen between iPhone and Android users, and until now those chats were left exposed in ways most users never knew about. With encryption now on by default for RCS, the risk of messages being intercepted or accessed by unauthorized parties drops substantially.

Apple has also reaffirmed that iMessage, available exclusively between Apple devices, remains end-to-end encrypted as it always has been. The new RCS encryption does not replace iMessage but extends similar protections to the broader cross-platform messaging experience that billions of people rely on every single day.

Disclaimer: HackersRadar reports on cybersecurity threats and incidents for informational and awareness purposes only. We do not engage in hacking activities, data exfiltration, or the hosting or distribution of stolen or leaked information. All content is based on publicly available sources.