Injecting hidden GUIDs into local files without explicit user consent is a massive privacy overreach. It makes you wonder what other local tools are silently tagging user generated content.
Edit to add: I just tested LibreOffice/26.2.5.2 and it is not injecting a UUID into the metadata either for a ODT or a DOCx (2007) file. I do not have native MS Office available on hand to test at the moment. I do see these UUIDs in published government documents but cannot swear to exactly what step of the pipeline is stamping them. Definitely on files that predate the AI integration push by Microsoft.
I'm afraid it is too late.
It's also not whataboutism, the comment specifically wondered how else were being surrupticously tracked without our knowledge. This is a concrete example and I think many would be surprised such tracking also exists outside the digital realm.
> Watermarking carries no identifying information and can’t be traced to a specific person, organization, or chat;