Monday, April 7, 2008

Physical Security

On Server Room entrance. They know how much security is  important in server environment so they decided to put this code-lock in the door. 

What do you think about that ? :) Of course it's a rhetoric question ! It's very easy to guess the 4 digit unlock pin. Moreover you might think that the # is used as "Enter Key" and that there are not one digit passwords, like for example 8888 or 9999 because both buttons are spoiled. So, you need 16 - 2 = 14 attempts in order to guess the right pin, that means in average it takes only 7 attempts to guess the correct sequence and enter into server room ! Cool, isn't it ?

1 comment:

Marco Fabbri said...

Amazing, you don't even need any fingerprint powder... :-)

Moreover the 9 button seems more spoiled than the 8 button so I would suggest there are three 9s and one 8 (4 possible combinations); from the positions of the "erasures" the "trajectory" could be # (upper left) -> 8 (upper left) -> 9 (side right) which turns my bet on 8-9-9-9.