This paper presents @stake?s research on GPRS Tunneling Protocol (GTP) in relation to security. While the likelihood of an operator being attacked via GTP from a handset is remote, it isn?t impossible. It is more likely that the Cellular Service Provider could be attacked from a more trusted source; the affects of such an attack could have a wide-reaching impact. This paper reviews some of the architectural alternatives an operator can consider when designing networks and discusses some benefits and downfalls of the designs.
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