Signal has introduced a "screen security" feature in its Windows application to enhance user privacy by preventing Microsoft's AI-driven Recall functionality from capturing content displayed within the app. This feature is active by default on all Windows 11 devices and sets a Digital Rights Management (DRM) flag on Signal's app windows. Recall, launched in May 2024, captures screenshots of active windows and has raised privacy concerns, leading Microsoft to make it optional and implement various security enhancements. Users can disable Signal's screen security but will be warned about potential privacy risks. Signal's developer, Joshua Lund, highlighted ongoing concerns regarding privacy in applications like Signal and called for a balance between privacy and accessibility in AI technologies.