This report is devoted to the security of 4G networks. The speakers will focus on vulnerabilities found: SIM card attacks, remote phone cloning, traffic interception, changing passwords, and gaining access to internal networks. Kirill Nesterov is an information security specialist at Positive Technologies. Suffering from one-sided love for vulnerabilities, he learned IDA PRO. Alexey Osipov is a senior expert of the penetration testing department at Positive Technologies, a graduate of Moscow Power Engineering Institute and the winner of the $natch contest at PHDays 2012. Timur Yunusov is a senior expert of the banking system security department at Positive Technologies. The author of researches on information security and organizer of the Positive Hack Days forum, he also has been a speaker at Black Hat EU and ZeroNights. Kirill Nesterov, Timur Yunusov, Alexey Osipov Kirill Nesterov, Timur Yunusov, Alexey Osipov