Re: [Full-Disclosure] Credit card numbers
From: Dan Stromberg (strombrg_at_dcs.nac.uci.edu)
To: "Myers, Marvin" <MRMyers@anteon.com> Date: 17 Jul 2003 11:57:11 -0700
On Thu, 2003-07-17 at 10:49, Myers, Marvin wrote:
> Maybe it is only me, but does anyone else notice a big jump in the
> number of merchants that are printing the entire credit card number
> and expiration date on receipts?
> Over the past 6 months I have had to educate about a dozen local
> merchants about the possible abuse scenarios that exist with this type
> of information leakage. If there
> Is not already some sort of law governing this policy, there should
I believe there's a patent on the idea of only listing four digits of a
credit card. So yes, there's an actual financial incentive to do the
A local grocery store was doing 8 digits for a while - before they went
out of business. Another shows all of them - they seem to be doing
Shredders are your friends. But don't let that stop you from
complaining to the merchant in question. Don't behead the person behind
the counter - but maybe ask them to relay a message to their manager.
On a related note, how do you get web vendors not to store your credit
card # on their hard disks longer than absolutely necessary? I trust
(ssl data entry * number of orders) a lot more than a merchant's ability
to stay up to date on patches until my card expires.
-- Dan Stromberg DCS/NACS/UCI <firstname.lastname@example.org>
Full-Disclosure - We believe in it.
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