[Uram-rejections] Contactless Cards- Radio Related

Mon Mar 21 17:05:24 GMT 2016

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 Trying to steer this thread back onto radio-sorry!

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> From webstump at chiark.greenend.org.uk Mon Mar 21 13:20:24 2016
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> From: rickman <gnuarm at gmail.com>
> Newsgroups: uk.radio.amateur.moderated
> Subject: Re: Contactless Cards- Radio Related
> Date: Mon, 21 Mar 2016 09:20:18 -0400
> Organization: A noiseless patient Spider
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> On 3/21/2016 5:22 AM, Brian Reay wrote:
> > The FranK Turner-Smith G3VKI <g3vKi at turner-smith.uK> wrote:
> >> "Brian Reay" <no.sp at m.com> wrote in message
> >> news:ncmf5i$ori$1 at dont-email.me...
> >>> On 18/03/16 20:41, Ian Jackson wrote:
> >>>> In message <nchmkv$4r0$1 at dont-email.me>, Brian Reay <no.sp at m.com> writes
> >>>>> Peter Crosland <g6jns at yahoo.co.uk> wrote:
> >>>>>> On 18/03/2016 14:24, Brian Reay wrote:
> >>>>>>> Does anyone know what frequency Contactless Cards (Credit and Bank
> >>>>>>> Cards) work on?
> >>>>>>>
> >>>>>>> I'm not planning on hacking them etc., I'm just curious, having had a
> >>>>>>> new card arrive with the facility.
> >>>>>>>
> >>>>>>> I've looked on YouTube and see some people who don't like the facility
> >>>>>>> are inhibiting it by cutting the antenna 'feed' by either drilling or
> >>>>>>> cutting a hole in the card. It seems a bit risky to me.
> >>>>>>
> >>>>>> Don't get too paranoid about them. The entry below tells you about the
> >>>>>> technicalities.
> >>>>>>
> >>>>>> https://en.wikipedia.org/wiki/Contactless_smart_card
> >>>>>
> >>>>> Oh, I'm not concerned about them, simply curious. I had one turn up the
> >>>>> other day and I'm expecting another as another card is due for renewal.
> >>>>> I
> >>>>> remember all the scare stories when Chip and PIN came in.
> >>>>>
> >>>> In their way, they are safer than chip 'n pin - or even carrying cash.
> >>>> There is a transaction limit of ｣30, and when you've accumulated about
> >>>> ｣100 of spends, you still have to enter your pin to complete the
> >>>> transaction, and do a re-set of the contactless function. So it should
> >>>> be only of limited use to anyone using your card.
> >>>
> >>> So I understand.
> >>>
> >>> Most of the various facilities banks offer (eg Direct Debits) have their
> >>> detractors and horror stories but, in my experience, they are actually
> >>> remarkably trouble free and, on the rare occasion there has been an
> >>> issue, the bank has always resolved it without fuss. They've even
> >>> spotted 'strange' transactions, contacted us to check, and issued new
> >>> cards without ever doubting our word and, of course, without charge.
> >>> We've never learned what a "strange transaction" is, the details they
> >>> give tend to be quite cryptic.
> >>>
> >>> My only concern with the way things are going is the increasing number
> >>> of cards you end up carrying by the time you have loyalty cards etc.
> >>> your wallet is bulging before you carry any cash.
> >>>
> >> I still don't understand how entering a 4 digit PIN is more secure than
> >> signing something.
> >
> > If someone grabs your card, they have you signature to copy. They don't
> > readily have your PIN.
> 
> You *sign* your cards!!!  I put, "Check ID" on mine.
> 
> -- 
> 
> Rick
> 
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