Re: How heavy is a chip?

[Dave Paris <dparis () w3works com>]

o_O   let's see .. nope.  weighing is a practical impossibility due to 
manufacturing variances being larger than the weight of circuitry.  Visa 
Fail.  If if manufacturing tolerances are sufficiently tight, that'd 
require a damn sensitive scale to detect some very small circuit additions!

The shimming thing is just plain scary.

On 7/22/2010 12:52 AM, Rob, grandpa of Ryan, Trevor, Devon & Hannah wrote:
> Interesting juxtaposition of news items.  A week or so ago, Visa recommended
> weighing card readers, in order to detect those that had been tampered with.
>
> http://www.h-online.com/security/news/item/Visa-recommends-weighing-
> card-readers-to-detect-tampering-1035293.html
>
> A couple of days later, saw a report on the latest ATM skimming scam: shimming.
>   This is when the bad guys insert their own chip, that sits on top of the contact
> pad for "chip and pin" cards:
>
> http://www.networkworld.com/community/node/63544
>
> ======================  (quote inserted randomly by Pegasus Mailer)
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