On 17 Jan 2013 at 19:11, DED wrote:
> You make the transfer of information twofold. Your bankcard carries
> a record of its account balance along with you. As you conduct
> business from one world to the next your bankcard is updated. And
> records of these transactions get sent back to your bank along the
> mail route (traders can carry mail too) to your bank.
Alas, every merchant that can accept a card will have a terminal that
can update it. Which means that messing with thr transactions is
*way* too easy.
The on-card transaction history is only as secure as the *least*
secure merchant terminal.
--
Leonard Erickson (aka shadow)
shadow at shadowgard dot com
> You make the transfer of information twofold. Your bankcard carries
> a record of its account balance along with you. As you conduct
> business from one world to the next your bankcard is updated. And
> records of these transactions get sent back to your bank along the
> mail route (traders can carry mail too) to your bank.
Alas, every merchant that can accept a card will have a terminal that
can update it. Which means that messing with thr transactions is
*way* too easy.
The on-card transaction history is only as secure as the *least*
secure merchant terminal.
--
Leonard Erickson (aka shadow)
shadow at shadowgard dot com