Is your printer spying on you?

Is your printer spying on you?: “Researchers hired by the Electronic Frontier Foundation (EFF) say they were able to break a code hidden in tiny tracking dots that some colour laser printers secrete in every document they print.
The U.S. Secret Service admits it struck a deal with some laser printer manufacturers to add tracking information to the printed matter. The spooks say it’s a means of identifying counterfeiters. “

Interesting. So the Secret Service says the codes are only used for counterfeiting cases, but basically are readable by all. I doubt very much that they kept this crime-fighting innovation to themselves.

Now, personally I’m not worried about this. I really doubt any of my laser-printed output will ever be of any interest to security services (although it’d make a useful tool in some copyright disputes). But I wonder about the results of the EFF’s research, as it now somewhat robs security services from the benefits of these codes in investigations. All computer literate criminals will now probably all switch over to inkjets which don’t have a high enough resolution for the microdot technology to work.