Don't connect to my 4G base station: investigating info leaks in 4G basebands

March 15, 2016 (at 4 p.m.) in The "Telco Security Day" (TSD) is an additional event to Troopers. It takes place on Tuesday the 15th. As the event aims to bring together only researchers, vendors and practitioners from the telecommunication / mobile security field, it is an invitation only event. The event is intended to be a discussion round for current topics accompanied by talks covering various subjects from different domains (e.g. practical security research or hacking, 3GPP standardization, Telco security operations). The TSD is a closed event and no filming will be allowed or recording will take place. It will be held in English. The agenda is publicly available and will be published here soon. Please note there is also a Shared Dinner at 19:30 for TSD Speakers and Attendees. For questions, talk submissions or invitation requests, please contact

4G/LTE networks are more secured than the previous generations. This talk discusses a research platform we built using open-source tools to investigate security of 4G/LTE networks and devices in practice. We show how popular smartphones available in the market leak information to a fake base station. In addition, we demonstrate our low-cost 4G/LTE IMSI catcher for the purpose of practical telecommunication security research.

Ravishankar Borgaonkar

Ravishankar works as a research fellow in Oxford University. His research themes are related to mobile telecommunication and involved security threats. This ranges from GSM/UMTS/LTE network security to end-user device security.

Altaf Shaik

Altaf Shaik is a PhD student in Security in Telecommunications Department at the Technical University of Berlin. He conducts research into security issues in 4G-LTE cellular networks, devices and their applications. Also, he is interested in M2M and IoT related security issues.