I've wondered this too. As far as I know it's just the first number
(typically 3, 4, or 5) that indicates card type. All I can guess is
it's an additional safeguard that the card is legitimate. I notice
that I'm always asked this question when using my card over the phone
- perhaps it's assumed that criminals don't know that cards beginning
with 4 are always Visa?
Sent from my iPhone
On Sep 28, 2009, at 2:02 PM, Amy Jones <[email protected]> wrote:
Hi all,
Given that it's fairly easy to identify what kind of credit card
someone
is using (Visa/MC/Discover/etc), is there a good reason to require
people to select the flavor they're using? I can imagine that people
might get confused if they're not asked, but I'm curious as to whether
there's any research for or against.
Amy Jones
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