Smart-phone Attacks and Defenses Chuanxiong Guo, Helen J. Wang, Wenwu Zhu Outline Smart-Phone background Telecom networks assumptions Motivation Attacks Defenses Conclusions Smart-phones Rich functionalities & features
Chuanxiong Guo, Helen J. Wang, Wenwu Zhu
O2 XDA mini S
Become end-points of both the Internet and telecom networks.
Compromised smart-phones use up radio resource at a base station
Even a handful of zombies can increase call blocking rate (0.01% required) dramatically or put the system out of service
PLMN: Public land mobile network PSTN: Public switched telephone network