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From: cdsm@doc.ic.ac.uk (Chris Moss)
Newsgroups: sci.crypt
Subject: Re: ATM secret codes
Message-ID: <460@ivax.doc.ic.ac.uk>
Date: Tue, 16-Jun-87 12:41:00 EDT
Article-I.D.: ivax.460
Posted: Tue Jun 16 12:41:00 1987
Date-Received: Sun, 21-Jun-87 15:02:41 EDT
References: <3256@well.UUCP> <1290003@hpcvlo.HP.COM>
Reply-To: cdsm@doc.ic.ac.uk (Chris Moss)
Organization: Dept. of Computing, Imperial College, London, UK.
Lines: 9


In UK all the ATMs insist you withdraw the card BEFORE you take the money.
This gets over most problems, though I have to confess I once walked away
and left the money in the machine! Boy did I get back quick, and was
grateful to be in a nice civilized town!
 From a protocol point of view I rather like the machines that make cash
withdrawal the last operation and don't ask you "Any more transactions?"
after you've asked for cash, but spit out your card and, when you've taken
it, give you the money. Cuts down the waiting line a bit.