iOS 26.5 brings end-to-end encryption to RCS chats between iPhone and Android
If you've ever wished your texts to Android friends were as secure as iMessages, iOS 26.5 is finally making that happen. Apple is rolling out end-to-end encryption (E2EE) for RCS messages — the modern standard that replaced SMS for cross-platform chats — enabled by default in the new beta. The catch: your carrier has to support it first.
How it works
The encryption uses the Messaging Layer Security (MLS) protocol, part of the GSMA's RCS Universal Profile 3.0 standard that Apple co-developed and committed to in March 2025. End-to-end encryption means only you and the person you're messaging can read what's sent — not Apple, not your carrier, not anyone in between.
Once you're on iOS 26.5, you can check whether the feature is active under Settings > Messages > RCS Messaging. When a conversation is encrypted, a lock icon appears in the Messages app — the same lock Android users see in Google Messages on their end, per 9to5Google. It's the first time both platforms have shown visual encryption parity for cross-platform chats.
The carrier dependency
This is where things get complicated. The feature doesn't switch on automatically for every iPhone user the moment iOS 26.5 lands. Carriers — think Verizon, AT&T;, T-Mobile in the US, or EE and Vodafone in the UK — need to have implemented Universal Profile 3.0 on their networks. Rollout will be gradual, and no carrier-by-carrier timeline has been announced.
Apple first tested the feature in iOS 26.4 beta but pulled it before that version's final release, according to MacRumors. It returns in 26.5, though it technically remains in beta status at launch.
Why it matters
RCS support arrived on iPhone with iOS 18, but without encryption it still lagged behind iMessage on privacy. That gap is now closing. For anyone who regularly texts Android users — and in mixed households that's most people — this means those conversations get the same fundamental protection as an iMessage. It's a meaningful privacy upgrade, not just a feature checkbox, and it arrives without requiring either side to download a third-party app.
