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Thursday, July 14, 2011

Insecure Vodafone femtocells allow eavesdropping, call fraud

via Ars Technica by (Peter Bright) on 14/07/11

Hackers have reverse engineered the femtocells used by British mobile operator Vodafone, and discovered that they can be used to eavesdrop on callers and used to fraudulently place calls and send text messages. Femtocells are being used increasingly often to provide better phone reception in areas with a weak signal. They contain short-range mobile base stations—typically with a range of 30-60 feet—paired up with Internet connections. Users within the range of the femtocell have their calls routed over a home Internet connection to the mobile operator's system.

Vodafone calls its femtocells Sure Signal. The Sure Signal costs £50, and supports up to 32 phone numbers belonging to 3G phones or Internet dongles. They can be used by any Vodafone customer, whether contracted or pay-as-you-go, with an Internet connection of 1Mbps or faster.

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