Oyster card hack to be unveiled
Details of how to copy the Oyster cards used on London's transport network can be published, a Dutch judge has ruled. The ruling overturns an injunction to suppress the information won by NXP - makers of the travel smartcards used in London and many other cities.
The injunction was sought in June 2008 after Dutch researchers demonstrated how to copy cards and travel free on the London Underground.
At the BBC.
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