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Signal introduces Screen security to block Windows Recall screenshots

Signal has introduced a new feature called Screen security, and you can thank Microsoft for it. The option disables screenshots from being captured on Windows 11.

Signal announced the news on its blog, highlighting the need for such a feature, to block Windows Recall from capturing snapshots of its app. This move aims to bolster privacy and security for users of the end-to-end encrypted messaging app. Windows Recall, which is currently available on Copilot+ PCs, captures snapshots of the screen every few seconds, allowing for the analysis of previously worked content via a searchable database save on the user's computer. However, concerns over privacy led Microsoft to make adjustments, including requiring Windows Hello for its use.

Signal's decision to implement the Screen security feature comes as a response to these privacy concerns. The privacy-focussed messaging service says that, even with Microsoft's changes to Windows Recall, content displayed in privacy-focused applications like Signal could still be at risk. To protect its users, Signal felt compelled to add an extra layer of security, even if that meant introducing some usability trade-offs.

Attempts to capture a screenshot when the feature is enabled will simply result in a black screen. The technology behind Signal's screen security is similar to the DRM protection that is used by streaming services like Netflix, which also blocks screenshots of protected content.

However, there are some drawbacks to this feature. Users who rely on accessibility tools such as screen readers or magnification software may find compatibility issues. The feature is rolling out to users, and is enabled by default. You may opt to disable it manually from the following location: Signal Settings > Privacy > Screen security. However, the messaging service also pointed out that since the option is hidden behind two menus, it is not easy to accidentally disable the screen security feature. The ability to disable or uninstall Windows Recall remains, as users can navigate through "Privacy & Security" settings to manage snapshot functionalities.

Signal criticized Microsoft for launching Recall without offering app developers options to granular settings to protect the privacy of users.

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