Question: What happens to a CHV (Card Holder Verification) and its mapped USIM PIN on a UICC platform after three consecutive incorrect presentations, considering multiple sessions?
Option 1: The CHV and USIM PIN are permanently blocked, requiring a full UICC reset.
Option 2: The CHV and USIM PIN become 'blocked' until the next GSM or USIM session.
Option 3: Only the CHV becomes 'blocked'; the mapped USIM PIN remains usable.
Option 4: A warning message is displayed, but both remain accessible for further attempts.
Explanation: After three consecutive incorrect presentations of a CHV (or its mapped USIM PIN), not necessarily in the same session, both become 'blocked', implying a severe access restriction. In telecom security contexts, 'blocked' often means needing administrative intervention (like a reset) to restore access, aligning with the concept of permanent blocking until reset to prevent brute-force attacks.