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Apple Tests End-to-End Encrypted RCS Messaging in iOS 26.4 Developer Beta

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Apple has introduced end-to-end encryption (E2EE) for Rich Communications Services (RCS) messaging in the iOS and iPadOS 26.4 Developer Beta. This feature is currently in beta and limited to Apple devices, with full rollout expected in future updates for iOS, iPadOS, macOS, and watchOS. The encryption is based on the RCS Universal Profile 3.0, which uses the Messaging Layer Security (MLS) protocol. Additionally, the beta includes enhanced memory safety protection with Memory Integrity Enforcement (MIE) and the default activation of Stolen Device Protection for all iPhone users. Applications can now opt in to the full protections of MIE, moving beyond the previously available Soft Mode. Stolen Device Protection introduces a one hour delay before allowing Apple Account password changes and requires biometric authentication for key security actions.

Timeline

  1. 17.02.2026 08:44 2 articles · 16h ago

    Apple Tests End-to-End Encrypted RCS Messaging in iOS 26.4 Developer Beta

    Apple has introduced end-to-end encryption (E2EE) for Rich Communications Services (RCS) messaging in the iOS and iPadOS 26.4 Developer Beta. This feature is currently in beta and limited to Apple devices, with full rollout expected in future updates for iOS, iPadOS, macOS, and watchOS. The encryption is based on the RCS Universal Profile 3.0, which uses the Messaging Layer Security (MLS) protocol. Additionally, the beta includes enhanced memory safety protection with Memory Integrity Enforcement (MIE) and the default activation of Stolen Device Protection for all iPhone users. Applications can now opt in to the full protections of MIE, moving beyond the previously available Soft Mode. Stolen Device Protection introduces a one hour delay before allowing Apple Account password changes and requires biometric authentication for key security actions.

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Apple increases bug bounty payouts for zero-click RCE vulnerabilities

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