Here’s the Reason Why ATM Pin has Only 4 Digit’s

Here’s The Interesting Things Behind The Invention Of Automated Teller Machine (ATM):

The idea of inventing ATM machine came from Computer Loan machine

John Adrian Shepherd-Barron, a Britisher invented this Automated Teller Machine

PIN stored on the card was developed by a Britisher named John Adrian Shepherd-Barron.

Now, Here’s a Question for you – Have You ever wondered why ATM pin consists of only 4-digits?

Here’s The Answer:

John Adrian Shepherd-Barron, the inventor of ATM machine was born to Dorothy Barron (Wimbledon Ladies Double Champion) in Shillong.
Barron proposed a 6 digit PIN.
But this idea has to be rejected because of Barron’s wife Caroline.
This is because Caroline could remember only the largest string of 4-digits.
6-digit was too long for her to recall.

But now there are many banks that are offering a 6-digit PIN code for accessing the Debit cards. Sometimes we may even forget the 4-digit code. Just imagine what happens if the PIN was 8 digits like that of passwords for emails, social media accounts etc.

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