Passwords - Reliable Password Entry

Problem 2 in Password Management: Reliable Password Entry

If the password is too long or complex the user might have problems entering it correctly and especially in a case of urgent (or safety) operations this would be not useful.

Example: South African Prepaid Electricity with 20-digit numbers – although a third of the population is illiterate, entry errors were the major problem and it could be solved by writing the numbers in two rows and groups of four digits.

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