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Xerox Photocopiers Randomly Alter Numbers, Says German Researcher

First time accepted submitter sal_park writes "According to a report from German computer scientist D. Kriesel, some Xerox WorkCentre copiers and scanners may alter numbers that appear in scanned documents. Having analyzed the output of two such devices, the Xerox WorkCentre 7535 and 7556, Kriesel found that "patches of the pixel data are randomly replaced in a very subtle and dangerous way": in particular, some numbers appearing in a document may be replaced by other numbers when it is scanned."

6 of 290 comments (clear)

  1. Slashdot affected as well by Anonymous Coward · · Score: 5, Funny

    Kriesel found that âoepatches of the pixel data are randomly replaced in a very subtle and dangerous wayâ

    Slashdot users are advised not to use Xerox copiers for submissions.

    1. Re:Slashdot affected as well by intermodal · · Score: 5, Funny

      Especially with such an international audience.

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      In SOVIET RUSSIA... erm...NSA AMERICA, the Internet logs onto YOU!
    2. Re:Slashdot affected as well by nmb3000 · · Score: 5, Funny

      "Smart parentheses" add no value to a document, either. They're just fluff. We should start using | for both opening and closing parentheses, no?

      Wow, you've somehow managed to make Lisp even more difficult to read

      |defun proj |y x||+|*|flet ||ip |x y||sum |* x y|||||* |/|ip x y||ip x x||x||x|y||

      Congratulations are in order, but I'm sure people will still keep using it :|

      --
      "What do you despise? By this are you truly known." --Princess Irulan, Manual of Muad'Dib
      /)
  2. Re:Mission Impossible 4? by Entropius · · Score: 5, Funny

    That's Xenu, not Xerox.

  3. Re:oh man, what a mess by Hatta · · Score: 5, Funny

    That's what she said.

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    Give me Classic Slashdot or give me death!
  4. Re:Anti-counterfeiting by Anubis+IV · · Score: 5, Funny

    You came up with the exact same conclusion as the author of the article you just read:

    Hey now, there's no need to accuse me of reading the article just because I looked at the pictures.