Kenneth Falck's Blog

Your printouts can be traced to you

Posted on 2005-10-20 by Kenneth Falck


Did you know that your printer is embedding secret identification codes in each paper it prints out? The code made by Xerox DocuColor printers was recently broken by the EFF. Other big printer manufacturers, such as HP, also use similar codes.

In other words, since the codes can be broken by anyone, they can also be used by anyone to trace a printout to the original printer. Think twice what you print!