Why are bank card PINs only 4 numbers while people advocate for complicated and lengthy online passwords?
In: 2
I heard a program on the radio where they interviewed the man who invented the ATM and when asked why he chose 4 numbers he said that [he’d asked his wife how many numbers she would like and 4 was the reply](http://news.bbc.co.uk/1/hi/business/6230194.stm) and that stuck.
Latest Answers