Reply to post: Re: Just a little question...

Mastercard launches card that replaces PIN with fingerprint sensor

Anonymous Coward
Anonymous Coward

Re: Just a little question...

'It seems ludicrous that payment codes are still but four digits long.'

What security would it bring to make it longer? It's not meant to make bruteforcing it /impossible/, as would a login password, merely to make it easily /detectable/.

It only takes 3 incorrect tries to kill a chip, or have an ATM swallow a magstripe card, or any kind of connected POS to report that something's up to the central servers, and from then on, you're the proud owner of a useless bit of plastic.

For what it's worth, China Union Pay cards do use 6-digit PINs.

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