Anne & Lynn Wheeler wrote:
recent posts mentioning some skimming threats
http://www.garlic.com/~lynn/aadsm22.htm#27 Meccano Trojans coming to
desktop near you
re:
http://www.garlic.com/~lynn#aadsm22.htm#30 Creativity and security
Trial starts on swipe-and-go card; A new smartcard could result
Anne & Lynn Wheeler wrote:
the trivial case from nearly 10 years ago was the waiter in nyc
restaurant (something sticks in my mind it was the Brazilian restaurant
just off times sq) that had pda and small magstripe reader pined to the
inside of their jacket. At some opportunity, they would causal
On Mar 26, 2006, at 22:07, Joseph Ashwood wrote:
- Original Message - From: "J. Bruce Fields"
<[EMAIL PROTECTED]>
Subject: Re: Creativity and security
On Fri, Mar 24, 2006 at 06:47:07PM -, Dave Korn wrote:
IOW, unless we're talking about a co
On Sun, 26 Mar 2006 19:07:07 -0800, "Joseph Ashwood" <[EMAIL PROTECTED]>
wrote:
> - Original Message -
> From: "J. Bruce Fields" <[EMAIL PROTECTED]>
> Subject: Re: Creativity and security
>
>
> > On Fri, Mar 24, 2006 at 06:47:
regardingg the XXXing on receipts it turns out that things aren't
as grim as i thought. i anlayzed the checksum algorithm and if
you are missing n digits there are 10^(n-1) clashes.
i verified this with a brute force program.
but in the "photograph the card" scenario ... if one digit is
blurry t
ref:
http://www.garlic.com/~lynn/aadsm22.htm#30 Creativity and security
and a more recent skimming news item from this month:
Cloned-card scams socking it to bank accounts
http://www.mysanantonio.com/news/metro/stories/MYSA030506.09B.atm_theft.27d5322.html
the above card mentions pins with debit
Joseph Ashwood wrote:
> The one I find scarier is the US restaurant method of handling cards.
> For those of you unfamiliar with it, I hand my card to the
> waiter/waitress, the card disappears behind a wall for a couple of
> minutes, and my receipt comes back for to sign along with my card. Just
>
- Original Message -
From: "J. Bruce Fields" <[EMAIL PROTECTED]>
Subject: Re: Creativity and security
On Fri, Mar 24, 2006 at 06:47:07PM -, Dave Korn wrote:
IOW, unless we're talking about a corrupt employee with a photographic
memory and telescopic eye
On Fri, Mar 24, 2006 at 06:47:07PM -, Dave Korn wrote:
> J. Bruce Fields wrote:
> > If all that information's printed on the outside of the card, then
> > isn't this battle kind of lost the moment you hand the card to them?
>
> 1- I don't hand it to them. I put it in the chip-and-pin card re
| > If all that information's printed on the outside of the card, then
| > isn't this battle kind of lost the moment you hand the card to them?
|
| 1- I don't hand it to them. I put it in the chip-and-pin card reader
| myself. In any case, even if I hand it to a cashier, it is within my
sight
J. Bruce Fields wrote:
> On Thu, Mar 23, 2006 at 08:15:50PM -, Dave Korn wrote:
>> So what they've been doing at my local branch of Marks & Spencer
>> for the past few weeks is, at the end of the transaction after the
>> (now always chip'n'pin-based) card reader finishes authorizing your
>> t
On Thu, Mar 23, 2006 at 08:15:50PM -, Dave Korn wrote:
>
> As we all know, when you pay with a credit or debit card at a store, it's
> important to take the receipt with you
> [..]
> So what they've been doing at my local branch of Marks & Spencer for the
> past few weeks is, at the end
Blanking out all but the last 4 digits is foolish. The last is a checksum
and the first four are determined by the merchant. This greatly reduces
the possibilities for the other 8 digits. I'd rather just Bank Name or even
the first 4 digits. (I know that amex use only 15, even worse.)
brucee
On Thu, Mar 23, 2006 at 08:15:50PM -, Dave Korn wrote:
> So what they've been doing at my local branch of Marks & Spencer for the
> past few weeks is, at the end of the transaction after the (now always
> chip'n'pin-based) card reader finishes authorizing your transaction, the
> cashier at
Olle Mulmo wrote:
> On Mar 20, 2006, at 21:51, [EMAIL PROTECTED] wrote:
>
>> I was tearing up some old credit card receipts recently - after all
>> these years, enough vendors continue to print full CC numbers on
>> receipts that I'm hesitant to just toss them as is, though I doubt
>> there
>> are
Unfortunately, they haven't. In Europe I get receipts with different
crossing-out patterns almost every week.
And, with "they" I mean the builders of point-of-sale terminals: I
don't think individual store owners are given a choice.
Though I believe I have noticed a good trend in that I g
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