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{{Main article|Printer steganography}}
Printer steganography is a type of [[steganography]] – "hiding data within data"<ref>{{Cite journal |doi = 10.1109/4236.935180|title = Digital steganography: Hiding data within data|journal = IEEE Internet Computing|volume = 5|issue = 3|pages = 75–80|year = 2001|last1 = Artz|first1 = D.}}</ref> – produced by color printers, including [[Brother Industries|Brother]], [[Canon (company)|Canon]], Dell, [[Seiko Epson|Epson]], [[Hewlett-Packard|HP]], IBM, [[Konica Minolta]], [[Kyocera]], Lanier, [[Lexmark]], [[Ricoh]], [[Toshiba]] and [[Xerox]]<ref>{{cite web|title=List of Printers Which Do or Do Not Display Tracking Dots|url=https://www.eff.org/pages/list-printers-which-do-or-do-not-display-tracking-dots|publisher=[[Electronic Frontier Foundation]]|date=2007-09-20|access-date=11 March 2011|archive-date=20 January 2017|archive-url=https://web.archive.org/web/20170120103601/https://www.eff.org/pages/list-printers-which-do-or-do-not-display-tracking-dots|url-status=live}} Retrieved 11 March 2011.</ref> brand color laser printers, where tiny yellow dots are added to each page. The dots are barely visible and contain encoded printer serial numbers, as well as date and time stamps.{{fact|date=February 2025}}
==Manufacturers and market share==
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