Signal Desktop's New Screen Security Feature Fights Back Against Microsoft Recall

Signal Desktop for Windows now includes a "Screen security" setting to prevent screenshots of Signal chats from being captured by Microsoft Recall. This setting is automatically enabled on Windows 11. Recall, a feature that takes screenshots every few seconds and stores them in a searchable database, was initially met with intense backlash and removed, only to return with adjustments. Signal's new feature uses DRM flags to block screenshots, albeit with usability trade-offs. Signal urges OS vendors to provide better developer tools to avoid privacy apps needing workarounds to protect user privacy.