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London Underground's card system fails

By | July 15, 2008, 6:18am PDT

Summary: The RFID-based smartcard technology providing access control to London’s public transportation system failed on Saturday, when the network stopped accepting cards.

London Underground card system fails

Subway fare collection systems in Europe seem to be failing left and right. Yesterday Berlin ticket machines were in the spotlight while today we travel to London for more subway fun.

London public transportation’s passenger control system, based on RFID-based electronic access cards, failed on Saturday. Known as Oyster cards, the automated system is intended to speed passenger access onto trains and buses.

The BBC reports:

The Oyster system on London’s public transport network has suffered a fault, rendering the electronic cards inoperable for about five hours.

The cards are used as a form of payment across the city on the Tube, buses, trams and the Docklands Light Railway.

A fault lasting from about 0530 BST to 1030 BST on Saturday meant card readers did not work and some passengers could be charged a maximum fare by mistake.

Making matters worse, cards swiped during that period were rendered useless and must be replaced. ZDNet UK notes, “An investigation has been launched into how 60,000 Oyster smartcards were made inoperable over the weekend.”

London’s smartcard system has been under fire recently for security concerns. ZDNet’s Nate McFeters covered that issue:

A group of Dutch security researchers was able to clone the “smartcards” that commuters use to pay fares in the London Underground system, allowing the group to ride for free.

Transport for London (TfL), which operates London’s subway and buses, provided the following statement in response to my request for additional technical information:

We are currently working with our contractor Transys to investigate the cause of the problem but worked to quickly reinstate the system and minimize any disruption to our passengers. The Oyster card system is extremely robust and problems of this nature are very rare. The last time something like this happened was over three years ago, in early 2005.

Let’s hope TfL informs the public once they’ve figured out what went wrong.

[Image (c) Transport for London 2005 and used by permission]

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Michael Krigsman is a recognized authority on the causes and prevention of IT failures.

Disclosure

Michael Krigsman

Michael Krigsman writes and speaks about technology in a manner that most observers consider to be fair and balanced. Michael believes that writing about IT failures, which often have complex causes, creates a unique obligation to be reasonable and accurate in both reporting and analysis.

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Biography

Michael Krigsman

Michael Krigsman is CEO of Asuret, Inc., a consulting company dedicated to reducing technology implementation failures. Asuret's suite of software tools improve the success rate of enterprise software deployments by quantifying and measuring governance issues that cause most project failures. Michael led the research effort underlying Asuret's model of collective intelligence and its practical application to reducing IT failures in consulting environments. He is a recognized authority on the causes and prevention of IT failures and is frequently quoted in the press on IT project and related CIO issues. He is considered an enterprise software industry "influencer" and provides advice to technology buyers, vendors, and services firms.

Previously, Michael served as CEO of Cambridge Publications, which develops tools and processes for software implementations and related business practice automation projects. Michael has been involved with hundreds of software development projects, for companies ranging from small startups to Fortune 500 organizations. Michael graduated with an M.B.A. from Boston University and a B.A. from Bard College. He is a Board member of the America's Cup Hall of Fame and the Herreshoff Marine Museum in Bristol, RI.

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Has the Oyster Card System Gone Mad?
elizab Updated - 15th Jul 2008
Makes you wonder what really went wrong and the implications for security. These RFID tags must contain writeable memory in them, so they can keep a running balance of money / or trips available on them. The tag readers can interrogate the RFID chip, as well as write to them -- so as you go in and out of the turnstiles, it can deduct money off the balance.

As I understand, readers in some retail environments can send a kill instruction to the chip, to essentially shut down the chip.

The article mentioned that some commuters were charged the maximum and that 60K Oyster cards were made inoperable.

So, did the Tube readers issue maximum charge/debit instructions, as well as kill instruction to the Oyster cards? If so, did the central system go haywire?

Can you imagine if someone actually hacked into the system what havoc could happen? While I understand that the TfL doesn't want to cause any alarms, I do think their statement about the system is a bit too sanguine for me.
0 Votes
+ -
Contributr
It's not all bad...
zwhittaker 15th Jul 2008
Instead of billing everybody individually for tickets from A to B, they just left the ticket barriers open, so free Tube travel for me happy
0 Votes
+ -
Thats exactly what should be done.
Been_Done_Before 15th Jul 2008
Good for them. Admit something is buggered, tell people your going to fix it, then provide an easy alternative for those who have been affected.
0 Votes
+ -
RE: London Underground's card system fails
tumblemumble 15th Jul 2008
An announced event.
This will happen again and again in the future.
The RFID technology sucks!
0 Votes
+ -
Contributr
Event was not announced
mkrigsman@... 15th Jul 2008
Why do you think it was?
0 Votes
+ -
Has the Oyster Card System Gone Mad?
elizab Updated - 15th Jul 2008
Makes you wonder what really went wrong and the implications for security. These RFID tags must contain writeable memory in them, so they can keep a running balance of money / or trips available on them. The tag readers can interrogate the RFID chip, as well as write to them -- so as you go in and out of the turnstiles, it can deduct money off the balance.

As I understand, readers in some retail environments can send a kill instruction to the chip, to essentially shut down the chip.

The article mentioned that some commuters were charged the maximum and that 60K Oyster cards were made inoperable.

So, did the Tube readers issue maximum charge/debit instructions, as well as kill instruction to the Oyster cards? If so, did the central system go haywire?

Can you imagine if someone actually hacked into the system what havoc could happen? While I understand that the TfL doesn't want to cause any alarms, I do think their statement about the system is a bit too sanguine for me.

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