Yiwen Hu
Assistant Professor of Computer Science
CSEE Department
UMBC
Joint work with Dr. Guan-Hua Tu (MSU) and Dr. Chunyi Peng (Purdue)
12 noon–1pm
Friday, September 5, 2025
Remotely via WebEx: https://umbc.webex.com/meet/sherman
Recording of Talk
Abstract:
Emergency communication over cellular networks (4G, 5G, and beyond) is a vital part of our nation’s emergency response and disaster preparedness system. Its security, however, is still far from satisfactory due to cellular-specific technical challenges and the diversified requirements from standards organizations and administrative authorities.
I will share our research insights and findings on (1) identifying design defects in cellular emergency services standards, and (2) investigating the security of operational emergency services in the U.S., as well as the technical challenges we encountered and how to address them. Our results show that operational cellular emergency services can be abused in
deniable ways. Finally, I will discuss emerging challenges and opportunities for safeguarding next-generation emergency services.
About the Speaker:
Yiwen Hu is an assistant professor in the CSEE Department at UMBC. She received her Ph.D. in computer science from Michigan State University and her B.S. degree from Zhejiang University, China. Her research interests span wireless communication, network security, mobile systems and applications. Her recent work focuses on safeguarding next-
generation emergency services and advancing Vehicle-to-Everything (V2X) communications.
Host:
Alan T. Sherman, sherman@umbc.edu
Support for this event was provided in part by the National Science Foundation under SFS grant DGE-1753681.
The UMBC Cyber Defense Lab meets biweekly Fridays 12-1pm. All meetings are open to the public.
Upcoming CDL meetings:
Sept 19, 2025: Gregory Winger (political science)
Oct 3, 2025: TBA
Oct 17, 2025: Mohammad Mohammadisiahroudi (Math)
Oct 31, 2025: Alan Sherman, String Matching by Humans through Simultaneous Presentation
Nov 14, 2025: Fabio Anza (Physics)
Nov 28, 2025: Thanksgiving weekend
Dec 12, 2025: Alan Sherman and Enis Golazewski, Security Analysis of the SecureDNA System