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ATM/computer failings

J

JosephKK

Jan 1, 1970
0
Cribbed from comp.risks


Date: Tue, 05 Jan 2010 00:33:39 +0100
From: Debora Weber-Wulff <[email protected]>
Subject: Y2K+10 problem 1. German contactless bank cards (3 messages)

Happy New Year!

Germans now have the answer as to why they came up short at the ATMs after
the New Year. Tagesschau reports online that people who were using newer
cash machine cards that had new-fangled golden chips in them were told at
the machine that their cards had an error because of a "software error". Not
only ATM machines were affected, supermarkets and such that check cards
online refused to accept the cards.
http://www.tagesschau.de/wirtschaft/eckarte102.html

Since I have spent the first 4 days of the year writing "20010", anyone want
to speculate that this is the error? No details on the exact nature of the
error as yet. It is scheduled to be fixed tonight (Jan. 4!).

Not all of the machines refused to work, only the newer ones with the
"EMV-Standard" (http://en.wikipedia.org/wiki/EMV) which are to keep the
cards from being duplicated illegally and "secure" the data.

Older cards, which store information on a magnetic strip, were not affected.

I'm glad I still have an old card and an ancient machine around the
corner. I got money after New Year's.

More: Wed, 06 Jan 2010 17:36:57 +0100

It is getting curiouser and curiouser! The Tagesschau reports in
http://www.tagesschau.de/wirtschaft/eckarte108.html and
http://www.tagesschau.de/wirtschaft/kreditkarten144.html, which
I translate and summarize here:

It turns out that even more cards are affected, and even more people are
unable to use either their EC cards or their credit cards to obtain cash or
to pay in stores.

The culprit has been named: The company that produces the cards,
Gemalto. Seems that the software thinks that it is the year 2016 and not
2010, so all of the cards are no longer valid. A friend pointed out to me
that 2016 is 11111100000 in binary. [*]

The problem is a program stored on the chip. The banks don't want to haveto
exchange all of the cards (a really expensive solution), so they are looking
for a workaround. One was promised for Monday evening, but it has not yet
materialized. ATMs are generally now accepting the cards again [meaning they
probably don't do any checking now...], but the Point of Sale terminals
refuse to cooperate.

30 million cards are affected, and changing them would entail the owners all
having to learn a new code for their cards. Only German cards are
affected. Many hundred thousand cards were just exchanged in November
because of problems with the data of cards used in Spain having been
available after a security breach.

The company Gemalto was formed 2006 in the fusion of the French company
Gemplus International and the Dutch Axalto Group. The company has 10.000
employees and produces bank cards, telephone SIM cards and electronic
passports. The company reports a volume of 1,68 billion euros in 2008.

Consumer organizations and the consumer minister are blasting the banks for
informing the consumers only a little bit at a time.

* On a side note, customers of smartphones using Windows Mobile operating
system have been noticing that incoming SMS messages also have the date
2016.

Still More: Thu, 07 Jan 2010 08:58:34 +0100

Just a bit of scotch tape, sir!

The great Y2K+10 problem in Germany continues:

The chips were put on the cards to make them more difficult to
duplicate. But it turns out, they at least have a fail-safe mode. If the
chip is found to be malfunctioning or not there, the card readers resort to
reading the magnetic stripe.

Spiegel and others report that all it takes is a little Scotch tape over the
contacts of the card, and the readers will switch to fail-safe mode.
Retailers now dispense tape at the cash registers.
http://www.spiegel.de/wirtschaft/soziales/0,1518,670433,00.html

It is great that they have this mode, but it kind of makes you wonder how
safe these expensive chips really make you, if they can so easily be
defeated.

Prof. Dr. Debora Weber-Wulff, HTW Berlin, Treskowallee 8, 10313 Berlin
Tel: +49-30-5019-2320 http://www.f4.htw-berlin.de/people/weberwu/
 
N

Nobody

Jan 1, 1970
0
Why should software think that it is 2016?
2009 is 11111011001,
2010 is 11111011010. I can't see any issue here.

The most plausible explanation I've seen is that the year is stored
without the century and in BCD, but the vendor thought that it was
in binary.

09 is 0000 1001 in both BCD and binary

10 is 0001 0000 in BCD
16 is 0001 0000 in binary
 
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