Security Risk Assessment of Rich Communication Services Over LTE

Xin He, Huiyun Jing

Abstract: To deal with the threat of over the top (OTT) applications, many operators launch their own rich communication services over LTE. China Mobile also declares the overall commercial of rich communication services in 2015. The rich communication services integrate abundant multimedia, media and social characteristics into the traditional telecom services. While these characteristics provide a superior user experience, they also attract the scammers to utilize these services as the new channel of spreading digital misinformation, launching mass events, phishing and so on. Besides these, the LTE/SAE network and user terminals also pose much security challenges to the RCS services. In this paper, we firstly and systematically assess the security risk of rich communication services based on their three-tier architecture, which aims at improving the security of rich communication services.