| Abstract |
Using new resources in concert with new and old telephony tricks, the speakers have been able to successfully track users of GSM mobile phones without direct access to SS7. Though, initially, the granularity of the location information was not fine enough, the speakers have been able to develop effective techniques to supplement the location data. Augmenting this attack is the ability to learn a target user's mobile phone number without the user's knowledge, enhancing the passive nature of the attack. The speakers will elaborate on new real world attack vectors that make these threats both credible and practical. GSM location data in the US is private. However, unscrupulous providers have exposed this data to an international audience, allowing anyone access to this information for a price. The researchers will elaborate on the technical details of how and why the above attacks work, what solutions are possible, and how users can protect themselves.
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