Re: [OM] notice

[Jim Couch]

You have to key in the three digits into the credit card machine for a mnaul
transaction. If they are wrong, the card will not be accepted for the 
transaction.

Jim Couch

John Hudson wrote:

> Absent sight of the card how would the vendor / enquiror determine if
> the card owner / enquiree was providing the correct number? Can the
> three digits be determined from some combination of the credit card
> number.
>
> jh


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