photos

Microsoft Paint and Photos Embed Server-Issued GUIDs as Invisible Watermarks in Locally-Generated Images

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Microsoft Paint and Photos embed a server-issued GUID as an invisible watermark into AI-generated images created locally on Windows devices. These GUIDs, returned by Microsoft's remote prompt moderation service, are embedded pixel-wise via a specialized watermarking DLL and are also included in the image's C2PA metadata for provenance, linking prompt moderation to the final image content. This system ensures AI-generated images carry a unique, machine-readable identifier even when generated locally, combining remote moderation with local watermarking and signed metadata.

https://xusheng.dev/posts/reversing/mspaint_invisible_watermark/main/

Windows 11 Is Quietly Installing OneDrive Photos, and It Wants to Scan Your Photos for Faces if You Allow It

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Windows 11 is now automatically installing a new app called OneDrive Photos, which functions as an additional photo viewer and editor integrated with OneDrive. The app scans local storage for images and can group faces using facial recognition if the user permits, raising privacy concerns since it is installed without explicit user consent and can only be removed by uninstalling OneDrive entirely. While the app offers features like AI-powered search and photo management similar to Microsoft Photos, its silent installation and integration with OneDrive have sparked criticism.

https://www.windowslatest.com/2026/07/29/windows-11-is-quietly-installing-onedrive-photos-another-image-viewer-that-nobody-asked-for/

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