Changing PINs of German bank card

Ingo Klöcker kloecker at
Mon Jul 10 19:38:54 CEST 2017

On Monday 10 July 2017 23:42:12 Guan Xin wrote:
> This is probably a general question --
> I have never seen a German bank that allows changing the PIN of a
> card. So I wonder if it is because using a fixed (non-changeable)
> 4-digit PIN mailed in clear text really safer than using a 4 to 6
> digit variable length PIN that never explicitly appears anywhere.

... and that would very often be either 1234[56] or the card owner's 
date of birth as we all know. A random 4-digit PIN randomly chosen by 
the bank is certainly safer than this.

> If German banks are right, then should I follow their method and store
> the PINs of my OpenPGP cards on a piece of paper?

German banks require you to destroy the PIN letter after memorizing the 
PIN. You are not supposed to keep the letter. If you want to follow 
their method then write your PIN on a piece of paper, memorize the PIN 
and then burn or eat the piece of paper. ;-)


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