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Is the IID of a MiFARE Plus Card confidential ?

Question asked by Gwendal Cournée on Jul 5, 2018
Latest reply on Jul 9, 2018 by Gwendal Cournée



I have some difficulties to understand what is the IID of a MiFARE card. I have understood that it is a unique number, but i can not understand if the IID is confidential for each card.


Is a IID confidential ?

If yes, how can retrieve it ?

If no, where can i get precise information about IID in general ?


Thanks for your future answers,

Gwendal Cournée