The PIN (Personal Identification Number) and PUK (Personal Unblocking Number) security codes are issued together with the CIE.
The PIN and PUK codes of the CIE have the same usage principle as that of a SIM card:
PIN code is necessary to authorize access to online digital services;
PUK code is necessary for de-blocking the PIN code (blocked after three consecutive entries of an incorrect code) and to set a new one.
The paper receipt provided by the clerk once all steps of the application procedure have been completed contains first half of the PIN and PUK codes.