On Fri, 21 Aug 2015 12:10:12 +0100, Peter put finger to keyboard and typed:
>What year is this, and how long has the internet been around?
Reliable Internet accessible from any random location in any random store
has been around for a much shorter length of time than electrnic credit
card terminals. Even now, an analog telephone line is still considerably
more reliable than a typical broadband connection. So a portable modem
contained within a terminal plugged into a telephone jack is, equally, more
reliable than broadband. And, given that it goes directly into the card
processors' central computers, there is no issue with possible interception
while the data passes over the public Internet.
This is changing, of course, and possibly the last few years have crossed
the line into which shop floor Internet is reliable enough (particularly if
also accessed via 4G/4G rather than a wired connection), and encryption
ubiquitous enough, for the Internet to be a better option than direct dial
modems. But don't underestimate the benefits of tried and trusted
technology. The fact that direct dial modems rarely fail to connect and
have no reported incidents of being successfully hacked is good enough
reason for many shops to continue to use them.
>I wonder how many people know about this... you can walk into a major
>High Street store and their chip and pin machine are also dialing out
>over the phone!
I would have thought this is well understood by anyone who runs a business
which involves taking credit card data on the shop floor. It certainly was
when I ran a shop back in the early 90s and we used precisely this
technology for card payments.
Mark
--
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