How to Ensure Your iPhone-Android Chats Are Encrypted with RCS

Introduction

For years, the lack of encryption between iPhone and Android messages was a glaring privacy gap. But with Apple’s iOS 26.5 update now rolling out, Rich Communication Services (RCS) between the two platforms can finally be end-to-end encrypted. This means your conversations in Apple Messages and Google Messages will be shielded from prying eyes—including Google, Apple, and your carrier. This guide walks you through everything you need to do to activate and verify this new security feature on your devices.

How to Ensure Your iPhone-Android Chats Are Encrypted with RCS — Source: www.eff.org

What You Need

Before you start, make sure you have the following:

An iPhone running iOS 26.5 or later (check in Settings > General > About).
An Android phone with the latest version of Google Messages installed (available on Google Play).
A cellular carrier that supports both RCS and encrypted RCS. See the list of supported carriers here.
Both contacts in the conversation must meet these conditions for encryption to activate.
Optional: For backup security, you may want to enable Advanced Data Protection on iOS (see Step 5).

Step-by-Step Guide

Step 1: Update Your iPhone to iOS 26.5

Go to Settings > General > Software Update on your iPhone. If iOS 26.5 is available, tap Download and Install. This update includes the encryption support for RCS chats with Android users. Make sure your device is connected to Wi-Fi and has sufficient battery life.

Step 2: Update Google Messages on Android

Open the Google Play Store on your Android phone. Search for Google Messages and tap Update if a newer version is available. The encryption feature requires the latest app release that implements the GSMA RCS Universal Profile 3.0 standard. Once updated, open Google Messages and ensure RCS is enabled: tap your profile picture > Messages settings > RCS chats and toggle on Enable RCS chats.

Step 3: Verify Carrier Support

Encrypted RCS depends on your carrier’s infrastructure. Apple and Google have published a list of supported carriers (e.g., Verizon, T-Mobile, AT&T in the US). If your carrier isn’t on the list, encryption may not work yet. Contact your carrier or check their website for RCS support. Note that even if your carrier supports RCS, they may not yet support encrypted RCS. This is an ongoing rollout.

Step 4: Check for the Encryption Lock Icon

After both you and your chat partner have updated and your carrier supports encrypted RCS, open a conversation with an Android user in Apple Messages or with an iPhone user in Google Messages. Look at the top of the chat window. If you see a lock icon and the word “Encrypted,” your messages are end-to-end encrypted. If you don’t see it, the chat may still be using standard RCS or SMS (which are not encrypted). Remind your contact to check their updates and carrier support.

Step 5: Enable Advanced Data Protection (Optional but Recommended)

Even with encrypted RCS, if you back up your messages to iCloud or Google’s servers, the stored conversations may not be fully encrypted. On an iPhone, go to Settings > [your name] > iCloud > Advanced Data Protection and turn it on. This encrypts your iCloud backups end-to-end, including messages. On Android, Google Messages encrypts the text of messages in backups, but not media (like photos and videos). For now, you may want to avoid backing up media if you’re concerned about cloud exposure, or use a third-party encrypted backup solution.

Step 6: Understand Limitations and Stay Vigilant

While encrypted RCS is a huge win, it’s not perfect. Metadata (like who you’re talking to and when) is still visible to carriers and possibly Apple/Google. Also, if you rely on cloud backups without Advanced Data Protection, your messages could be stored unencrypted. For highly sensitive conversations, consider using apps like Signal, which encrypt both content and metadata. Remember that encrypted RCS is still marked as beta on Apple devices, so occasional hiccups are possible. If you don’t see encryption, wait for updates and check again later.

Tips for the Best Experience

Keep software updated on both devices to benefit from the latest security patches and encryption support.
Verify with a friend before trusting the encryption. Both parties should see the lock icon.
Use Signal for extra privacy if you’re discussing sensitive topics—encrypted RCS still leaks metadata.
Check your backup settings to ensure messages aren’t stored in plaintext. Enable Advanced Data Protection on iOS; on Android, consider turning off media backup.
Be patient with the rollout. Not all carriers have activated encrypted RCS yet. It may take weeks or months for full global availability.
Spread the word to friends and family—encryption only works when everyone in the conversation updates their apps and settings.

We applaud Apple and Google for finally delivering on this long-awaited privacy feature. While not perfect, it’s a significant step toward securing millions of cross-platform chats. By following these steps, you can help protect your conversations from unwanted access.

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