GSM Phone Encryption Codes Cracked [news.bbc.co.uk]

The work could allow anyone - including criminals - to cheaply and easily eavesdrop on private phone calls.

Mr Nohl told the Chaos Communication Congress in Berlin that the work showed that GSM security was "inadequate".

"We are trying to inform people about this widespread vulnerability," he told BBC News.

"We hope to create some additional pressure and demand from customers for better encryption."