Your Printer Prints Secret Microdots That Can be Traced Back to You | Gadgets 360
DocuColor Tracking Dot Decoding Guide
yellow dots printed « Cyber Security
The Hacker News on Twitter: "Here's How Secret "Yellow Dots" on Classified Documents Helped #FBI to Identify NSA Leaker, @ErrataRob Explained https://t.co/pc1horqtfi https://t.co/OmwVqh1T0W" / Twitter
This Secret Printer Code Could Have ID-ed Reality Winner - The Atlantic
Why printers add secret tracking dots - BBC Future
Printer Tracking | Electronic Frontier Foundation
Yellow Dots of Mystery: Is Your Printer Spying on You? : 5 Steps (with Pictures) - Instructables
Reality Winner was outed by invisible dot patterns added by printers (among other things) | Boing Boing