Signal Completes Cross-Platform Rollout of Encrypted Local Backups
Version 8.30 enables encrypted local backup support on iOS and desktop apps, extending feature availability to all supported operating systems.
Key Takeaways
- Signal version 8.30 completes the cross-platform rollout of encrypted local backup support.
- The feature enables end-to-end encrypted local copies of chat history for data recovery.
- Availability now spans Android, iOS, Linux, macOS, and Windows.
- No known exploitation has been reported; the feature uses end-to-end encryption.
- The update is a feature release and does not patch a security vulnerability.
Quick answers
- What happened?
- Signal Labs, Inc. released version 8.30 of the Signal messaging app, finalizing the deployment of its encrypted local backup feature across Android, iOS, Linux, macOS, and Windows. The update allows users to create end-to-end encrypted local copies of their chat history for data recovery purposes. The feature was previously available on Android and is now fully cross-platform. No known exploitation has been reported, and the feature is designed with end-to-end encryption to secure backups against unauthorized access.
- Which products are affected?
- Signal app
- What should defenders do?
- Update to Signal version 8.30 or later to enable the encrypted local backup feature. No patching for a security vulnerability is required, as this is a feature rollout.
Signal Labs, Inc. has released version 8.30 of the Signal messaging app, completing the rollout of its encrypted local backup feature across all supported operating systems. The update, announced on September 29, 2026, brings the capability to create encrypted local backups of chat history to iOS and desktop applications, extending a feature that was previously available only on Android. The rollout now covers Android, iOS, Linux, macOS, and Windows. According to the release, the feature allows users to create local backups of their chat history that are secured with end-to-end encryption, meaning the backup data remains protected against unauthorized access even if stored on local device storage. Signal emphasized that the feature is designed to improve data recovery options while maintaining the service's privacy standards. No security vulnerability is being addressed by this update; it is a feature release. The company has not reported any known exploitation of the backup feature. Users seeking to enable the functionality are advised to update to Signal version 8.30 or later.
Security Details
The encrypted local backup feature in Signal 8.30 uses end-to-end encryption to secure chat history backups on local storage. Backups are protected against unauthorized access, and no security vulnerability is being addressed by this update.
Affected products
Signal app
Mitigation
Update to Signal version 8.30 or later to enable the encrypted local backup feature. No patching for a security vulnerability is required, as this is a feature rollout.
Sources
BleepingComputer
Signal adds encypted local backup support to iOS, desktop apps
Sep 29, 2026 · 21:30
Original link
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