Blue Bubbles, Red Flags: Investigating Privacy Leakage in Apple iMessage

Viktor Garske*, Swantje Lange*, Gabriel Karl Gegenhuber, David Schmidt, Andreas Noack, Jiska Classen

ACM CCS, 2026

DEMO: Recent Advancements in Detecting Cellular Attacks with CellGuard

Swantje Lange, Lukas Arnold, Maximilian Paß, Matthias Hollick, Jiska Classen

ACM WiSec, 2026

Bad Connection: Uncovering Global Telecom Exploitation by Covert Surveillance Actors

Gary Miller, Swantje Lange

The Citizen Lab

Wherever I May Roam: Stealthy Interception and Injection Attacks Through Roaming Agreements

Swantje Lange, Francesco Gringoli, Matthias Hollick, Jiska Classen

ESORICS 2024