Aram Bartholl – Blog

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Public Interface Studies II

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( Pin code input pad on a Deutsche Bank ATM in Berlin Prenzlauerberg.)

Hmm … isn’t that strange? It seams like everybody has a one, nine or zero in his/her four digit pin code and very few people a six or a two. Do banks have any special algorithms on generating pin codes which are simple to learn by heart? Or do we have a security issue here? Yes, true my code does not contain two, four or six. Am I in trouble now … ;-)

Written by Aram

September 25th, 2008 at 11:59 am

Posted in pic of the day

3 Responses to 'Public Interface Studies II'

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  1. Very interesting! Perhaps the most enigmatic secret was just now revealed :-)
    I don’t know why, but I’m thinking about Mythbusters and their censored report:

    Der Merzmensch

    25 Sep 08 at 7:45 pm

  2. depending on the user interaction, could 1,9,0 be common buttons for navigation prompts? if so, that may be one reason why they are more worn down that the other keys


    1 Oct 08 at 8:40 pm

  3. yes @merzmensch, they seam to be in trubble. part of the rfid technology as well as the very old standard magnetic cards.

    good point @halvfet. all standard navigation goes trough some extra keys next to the screen but since you want to withdraw a specific amount of money ( other than 100, 200, 300, 500, etc) you have to punch it in on the number keypad. haven’t thought about that. it probably means that these people go for 150,- , 350,- or or just 50,- maybe even 900,- (1000,- is probably the limit.) i will check next time if they have 250,- and 200,- as default option. that would maybe prove your point.


    1 Oct 08 at 9:02 pm

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