don't like the price? change the barcode!

Matt Johnston matt at ucc.gu.uwa.edu.au
Sat Apr 12 00:24:31 EDT 2003


On Fri, Apr 11, 2003 at 12:57:11PM -0400, Perry E. Metzger wrote:
> 
> A trivial way to attack automated bar code scanners: change the
> barcodes on products you are buying. I think actually doing it is
> reprehensible, but on the other hand it does show what happens when
> people start applying lessons from computer security to the real world:
> 
> http://www.re-code.com/
> 
> A Salon article on the same topic:
> 
> http://www.salon.com/tech/feature/2003/04/10/barcode/index.html

This isn't exactly a new idea, see

http://web.archive.org/web/19981205175233/www.fravia.org/crack_C1.htm

from ~5 years ago. There could be earlier examples out there too.

Matt


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