CVV (was: Re: bloomberg on supermicro: sky is falling)

Chris Adams cma at
Fri Nov 9 17:14:29 UTC 2018

Once upon a time, Stephen Satchell <list at> said:
> On 11/08/2018 07:50 PM, Chris Adams wrote:
> > Signatures are no longer required for chip card transactions in the US,
> > except I think for transactions where the auth is done on the amount
> > before an added tip (restaurants).
> Signatures are required for chip card transactions above a certain
> dollar amount, with that dollar amount varying from merchant to
> merchant.  I ran into this at the Sprint store when I used a chip card
> to pay $800+ for my company's overdue wireless bill, and I had to apply
> pen to paper by hand.  And I didn't do my usual response to "sign here":
> draw a triangle and put "yield" in it.

That's just because Sprint wanted it, not the credit card company.  For
example with VISA, the signature is "optional" for chip transactions, no
matter the amount, but the retailer can still require it if they want
(because they want to annoy customers I guess?).

Chris Adams <cma at>

More information about the NANOG mailing list