2026-08-25 / Signal #1
Microsoft Paint secretly fingerprints even “local” AI doodles with a user-linked GUID
“You drew it on your own PC. Microsoft still signed the guestbook in invisible ink.”
Why It Matters
Everyday consumer software just turned your private scribble into a signed, company-owned artifact. “Local” generation is now a polite fiction; the future of personal creation includes an invisible guestbook that only Microsoft can read.
Evidence
The Register (25 Aug 2026 reporting); researcher Xusheng Li reverse-engineering post. Primary URL: https://www.theregister.com/ai-and-ml/2026/08/25/microsoft-ai-watermarks-in-paint-and-photos-are-linked-to-user-ids-researcher-finds/5292034
Sources
Daily scan: 2026-08-25