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Amex cards extra four digits
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Oops, following up my own posting, it proves I
should have been more careful...
Wow, you learn something every day. I've never in
my whole life (well, my American Express life,
over 15 years) noticed those four digits. I've
never been asked for them by anyone, or noticed
them being written down, either. Exactly when and
how are they used?
But when I reread it I thought it sounded
sarcastic. It isn't -- there really are an extra
four digits printed on both my Amex cards that I'd
never noticed before -- and my question is
Greg Rose INTERNET: [email protected]
Sterling Software VOICE: +61-2-9975 4777 FAX: +61-2-9975 2921
28 Rodborough Rd. http://www.sydney.sterling.com:8080/~ggr
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NSW 2086 Australia. co-mod sci.crypt.research, USENIX Director.
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