Por menos de 300 euros en una universidad de Noruega explican que se puede hacer un IMSI Catcher (una antena de celular que actúa como un ataque de «hombre en el medio») y así poder rastrear a los usuarios de telefonía celular en los últimos modelos (4G/LTE).
Easy 4G/LTE IMSI Catchers for Non-Programmers
Stig F. Mjølsnes, Ruxandra F. Olimid
IMSI Catchers are tracking devices that break the privacy of the subscribers of mobile access networks, with disruptive effects to both the communication services and the trust and credibility of mobile network operators. Recently, we verified that IMSI Catcher attacks are really practical for the state-of-the-art 4G/LTE mobile systems too. Our IMSI Catcher device acquires subscription identities (IMSIs) within an area or location within a few seconds of operation and then denies access of subscribers to the commercial network. Moreover, we demonstrate that these attack devices can be easily built and operated using readily available tools and equipment, and without any programming. We describe our experiments and procedures that are based on commercially available hardware and unmodified open source software.