security, gsm, bladerf, yatebts — 12 September 2016 Practical attacks against GSM networks (Part 1/3): Impersonation Introduction The Global System for Mobile Communications (GSM) is a mobile technology and the most popular standard for mobile phones worldwide. Originally known as Groupe Spécial Mobile, the GSM came through the CEPT (Conférence des Administrations Européenes des Postes et...