Printer fingerprint decoder

Nice find! The EFF program is released under the GPL here: https://w2.eff.org/Privacy/printers/docucolor/docucolor.cgi

@Ego @Patrick do you think there is value in packaging this or should I just refer to it on our wiki page on the topic?

One piece of opsec I heard was that using a black and white only printer would have made this technique impossible. Do you know if this is true?


What’s the value of packaging this? What could a user possibly do with that?

Printer tracking is an important topic. We have some documentation here:


Please check if it’s complete.

Perhaps it deserves its own wiki page and/or should be moved elsewhere. //cc @torjunkie

Good day,

As far as I can tell, @HulaHoop already made additions to that section 3 hours ago.

Have a nice day,


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You’re right. This script only seems to say the dots are there which we know already and so it really doesn’t change anything unlike MAT that removes identifying info.

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