August 3, 2021 04:48 pm GMT
Original Link: https://boingboing.net/2021/08/03/how-to-decode-credit-card-numbers.html?utm_source=rss&utm_medium=rss&utm_campaign=how-to-decode-credit-card-numbers
How to decode credit card numbers
This 5-minute video explains the meaning of credit card numbers. They aren't just random, and the final digit is a check digit that makes it possible to determine if a credit card number is invalid without checking it against a database of issued credit cards. — Read the rest
Original Link: https://boingboing.net/2021/08/03/how-to-decode-credit-card-numbers.html?utm_source=rss&utm_medium=rss&utm_campaign=how-to-decode-credit-card-numbers
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