[LINK] Cheap solution for security

Adrian Chadd adrian at creative.net.au
Tue May 26 10:57:37 AEST 2009

On Tue, May 26, 2009, Martin Barry wrote:
> $quoted_author = "Adrian Chadd" ;
> > 
> > How is this secure again?
> It looks like a "something I have" component of authentication.


> I gather this would be preferred to CCVs because they are merely an
> extension of "something I know" (in addition to the card number, expiry
> etc.etc.).
> I also gather it would be preferred to SecureID and similar hardware tokens
> because of the ability to include in on the credit card, doesn't require
> batteries.

But it still isn't any better at MITM than a proper cryptographic solution.

All it means is you can't easily fill in your "CVV" without using some
(presumably licenced) technology which someone else in the food chain
gets paid for.


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