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The yellow dot code that led to arrest of whistleblower Reality Winner

Von / 6. Juni 2017 / 11 Kommentare / Seite 2 von 2 / Auf einer Seite lesen
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In case you know something new about Printer Identification Codes, please let me know. If you detect yellow dots on a document you have printed, I would be interested in publishing it on my blog. Maybe somebody can use it to find out more about the code.

And thanks to Karsten and Armin for the scans!


Further reading: Tony Gaffney’s starlight steganogram

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Kommentare (11)

  1. #1 merzmensch
    6. Juni 2017

    As far as I know, this technology, which is popular in the printers and copy machines in the USA, is not supported in Europe. Say, the same model you’ve brought in Europe won’t print this code. At least, it was so for 2-3 years. I analyzed my printed copies and found nothing. But my printer is already ca. 7 years old. Perhaps times change.

  2. #2 Klaus Schmeh
    6. Juni 2017

    John Haas via email:
    Yellow Dots of Mystery: Is Your Printer Spying on You?
    https://youtu.be/izMGMsIZK4U

  3. #3 Piper
    7. Juni 2017

    Come on, this really smells a little bit fishy..

    Since Edward Snowden, does the NSA still allow that external hired persons have access to documents which are “Secret”?

    Can the NSA really be that stupid?

    Not talking about that the NSA gave access to persons to “Secret” rated documents, who would use their own (NSA/Their Company) Email account to send scans of “Secret” rated documents to a leaking website, which has nothing better to do than sending those documents to the FBI.

    So:

    a) This person, Reality Winner, must be totally stupid and is not qualified for such a job

    and/or

    b) The NSA, after the experiences with Edward Snowden, havent changed anything and still gives access to “SECRET” rated documents to everyone

    or

    c) The Intercept website, of which i haven’t heard before, must just be a honey trap to trick whistleblowers, since they have no fear to work together with the FBI.

    Just my thoughts, feel free to post your thoughts too, how real this leak is nor not.

  4. #4 Chris B.
    Vienna, Austria
    7. Juni 2017

    Some more (technical) information including an online decoder can be found here:

    https://w2.eff.org/Privacy/printers/docucolor/

  5. #5 gedankenknick
    7. Juni 2017

    @merzmensch:
    You are wrong. I live in Europe. I´ve own a Kyocera Ecosys M6526 Multifunktion Color Laser Printer. In Black/White-Mode it wont print yellow dots. In color mode it prints a yellow-dot-code! I tested it an look with my “reflected light microscope”. So I´m sure.

    I think, the first idea was to identify printers used to print false money easier. Because with the first better color laserprinter everybody could make fake money very easy, sometimes even in copyshops. So the National Bank had a problem, an the government had to do something… So the printer-companies were told set marks in the color prints…

  6. #6 Fliegenschubser
    7. Juni 2017

    I just checked a document i printed some weeks ago in the office. It clearly has the yellow dots, no doubt about that. Printed by a Konica-Minolta Bizhub.

  7. #7 Thomas
    7. Juni 2017

    Was it a private or a professional printer in Winner’s case? Where/by whom was the dot code registered?

  8. #8 Klaus Schmeh
    7. Juni 2017

    Mark Romo via Facebook:

    I had to read the article a couple of times before I realized Reality Winner was the woman’s name. :/ How unusual. I thought my friend’s name, Sonny Day, was odd, but Reality Winner gets the cake.

  9. #9 Klaus Schmeh
    7. Juni 2017

    Dave Kocur via Facebook:

    When I saw the name trending, I honestly thought it was a late entry into the Belmont Stakes.

  10. #10 Gerhard
    Nord-Italien (=Niedersachsen)
    8. Juni 2017

    Sooooo geheim ist das nicht. Die Zeitschrift CT hat das schon vor Jahren erklärt. Weil man so die Geldfälscher entlarvt hat.

  11. #11 Klaus Schmeh
    8. Juni 2017

    This scan was provided to me by reader Rudolph.