Farelf Posted August 5, 2013 Share Posted August 5, 2013 Interesting and a little alarming/disappointing all at the same time, from DataGenetics whom I'd not heard of before T. Sparrow in the grc newsgroups pointed to the following: http://www.datagenetics.com/blog/september32012/ Oh well, while there's easy pickings the harder targets abide a little longer. Link to comment Share on other sites More sharing options...
Geek Posted August 5, 2013 Share Posted August 5, 2013 When ATM cards first hit Canada, they all allowed a 6-digit PIN and one Credit Union allowed up to 12. Whose the herpty-derp that standardized it at 4? Link to comment Share on other sites More sharing options...
michaelanglo Posted August 5, 2013 Share Posted August 5, 2013 When ATM cards first hit Canada, they all allowed a 6-digit PIN and one Credit Union allowed up to 12. Whose the herpty-derp that standardized it at 4? As usual with standards Lowest wins - if your issuer lets you have a long PIN the card works locally only I was surprised that 1066, 1492, 1776, 1805 didn't rank higher. Link to comment Share on other sites More sharing options...
Lking Posted August 5, 2013 Share Posted August 5, 2013 interesting article. And he ends with another security absurdity; passwords no one can remember so they write the on a post-it and put them on their monitor, instead of just longer memorable ones. Link to comment Share on other sites More sharing options...
Farelf Posted August 5, 2013 Author Share Posted August 5, 2013 By way of contrast, Benford's Law predicts the frequency of digits in the description (measurement) of physical entities, with recent hints of a fractal connection. No leading zeros in mensuration of course, significant digits only: Digital Frequency - Benford's Law Digit 1st 2nd 3rd 0 - 11.967927% 10.178436% 1 30.103000% 11.389010% 10.137598% 2 17.609126% 10.882150% 10.097220% 3 12.493874% 10.432956% 10.057293% 4 9.691001% 10.030820% 10.017809% 5 7.918125% 9.667724% 9.978758% 6 6.694679% 9.337474% 9.940131% 7 5.799195% 9.035199% 9.901921% 8 5.115252% 8.757005% 9.864118% 9 4.575749% 8.499735% 9.826716% All 100% 100% 100% Apropos of nothing in particular - except Benford's is a sometimes useful touchstone for the division between "the world" (say account balances) and human imagination (say accounting fraud) - or randomness ("noise"). The Benford's prediction of the least likely 4-digit sequence is anything from 9990 to 9999 (practically the same probability throughout that range). Link to comment Share on other sites More sharing options...
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