Solderpunk@Wolf480pl @deshipu @kensanata Pro tip! 4 digit PINs with 3 unique digits are more secure than PINs with 4 unique digits against attacks based on finger prints/smudges/wearing down of labels. An attacker doesn't know which of the 3 digits is the duplicate, and there are thus more possibilities to brute force than with 4 unique digits.
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