[LINK] RFI: PayWave/PayPass Contactless Chip Cards

[Karl Schaffarczyk]

Roger,
The robustness of the chip and coil is less than the energy delivered in
one second on high in the microwave oven.

Sure, the microwave leaves a few black spots on the card, but it certainly
disables all the induction coils, chips, etc.

Karl



> >On 11/04/2012 3:33 PM, Roger Clarke wrote:
> >>   2. The contactless chip that
> >>   supports Visa PayWave and MasterCard PayPass is embedded in the card
> >>   (along with the induction coil), and can't be seen.
>
> At 16:20 +1000 11/4/12, Stephen Wilson wrote:
> >Actually no, it's all in the one chip now.  A single "dual interface"
> >chip talks to the outside world through either the gold plated contacts
> >you see on the surface, or an antenna buried in the plastic.  Scratching
> >off the contacts need not affect the wireless channel.  ...
>
> Damn!
>
> I *knew* I should've updated myself more frequently than once per 5-8
> yrs  (:-(}
>
> Steve, what's the robustness of the antenna / coil like these days,
> and of its connection to the chip?
>
>