Securing Multimedia Services In Next-Generation Mobile Systems - From Devices To Infrastructure

The mobile systems that support communication for 7.1 billion users worldwide have evolved significantly. From the inception of 1G in 1979 to the development of future 6G technologies, each new generation of mobile networks brings not only exciting innovations but also hidden security challenges. In this talk, I will summarize the vulnerabilities we have uncovered in both mobile devices and network infrastructure. For mobile devices, we found that security has lagged behind the advancements seen in network infrastructure, leading to new vulnerabilities and attack vectors such as cross-network denial of service (DoS), SMS source spoofing, user privacy breaches, and covert communications over video calls. For network infrastructure, we discovered that support for emergency services (911) on anonymous mobile equipment, which operates without a SIM card, introduces distinct behaviors compared to conventional mobile services, thereby expanding the attack surface of the mobile infrastructure.

Sep 26, 2024 12:30 PM — 2:00 PM