25 citations · 36 across the 7 of their papers we have counts for
7 papers
A Queryable Graph-Based Security Analysis Framework for O-RAN
Corban Villa, Michele Guerra, Syed Khandker +3
The Open Radio Access Network (O-RAN) replaces vendor-locked RANs with a modular and interoperable architecture that fosters competition and accelerates innovation. With this openn…
Security Analysis of LTE Connectivity in Connected Cars: A Case Study of Tesla
Evangelos Bitsikas, Jason Veara, Aanjhan Ranganathan
Modern connected vehicles rely on persistent LTE connectivity to enable remote diagnostics, over-the-air (OTA) updates, and safety-relevant services. While mobile network vulnerabi…
Security Analysis of 5G NR Device-to-Device Sidelink Communications
Evangelos Bitsikas, Aanjhan Ranganathan
5G NR sidelink communication enables new possibilities for direct device-to-device interactions, supporting applications from vehicle-to-everything (V2X) systems to public safety,…
Dyna-5G: Dynamic Role Switching for Self-Organizing 5G M2M Networks
Evangelos Bitsikas, Adam Belfki, Aanjhan Ranganathan
M2M deployments such as drone swarms demand mission-critical communication: km-scale range, strong per-device identity and mutual authentication, and deterministic QoS for bandwidt…
Freaky Leaky SMS: Extracting User Locations by Analyzing SMS Timings
Evangelos Bitsikas, Theodor Schnitzler, Christina Pöpper +1
Short Message Service (SMS) remains one of the most popular communication channels since its introduction in 2G cellular networks. In this paper, we demonstrate that merely receivi…
Hope of Delivery: Extracting User Locations From Mobile Instant Messengers
Theodor Schnitzler, Katharina Kohls, Evangelos Bitsikas +1
Mobile instant messengers such as WhatsApp use delivery status notifications in order to inform users if a sent message has successfully reached its destination. This is useful and…
You have been warned: Abusing 5G's Warning and Emergency Systems
Evangelos Bitsikas, Christina Pöpper
The Public Warning System (PWS) is an essential part of cellular networks and a country's civil protection. Warnings can notify users of hazardous events (e.g., floods, earthquakes…