Philipp É. Frenzel

According to our database, Philipp É. Frenzel authored at least 9 papers between 2024 and 2026.

Collaborative distances:

• Dijkstra number of five.
• Erdős number of four.

2026

Hey there! You are using WhatsApp: Enumerating Three Billion Accounts for Security and Privacy.

Gabriel K. Gegenhuber, Philipp É. Frenzel, Maximilian Günther, Johanna Ullrich, Aljosha Judmayer

Proceedings of the 33rd Annual Network and Distributed System Security Symposium, 2026

2025

SIMulator: SIM Tracing on a (Pico-)Budget.

Gabriel K. Gegenhuber, Philipp É. Frenzel, Adrian Dabrowski

CoRR, June, 2025

Prekey Pogo: Investigating Security and Privacy Issues in WhatsApp's Handshake Mechanism.

Gabriel Karl Gegenhuber, Philipp É. Frenzel, Maximilian Günther, Aljosha Judmayer

Proceedings of the 19th USENIX WOOT Conference on Offensive Technologies, 2025

Poster: SIMulator: SIM Tracing on a (Pico-)Budget.

Gabriel K. Gegenhuber, Philipp É. Frenzel, Adrian Dabrowski

Proceedings of the 18th ACM Conference on Security and Privacy in Wireless and Mobile Networks, 2025

Careless Whisper: Exploiting Silent Delivery Receipts to Monitor Users on Mobile Instant Messengers.

Gabriel K. Gegenhuber, Maximilian Günther, Markus Maier, Aljosha Judmayer, Florian Holzbauer, Philipp É. Frenzel, Johanna Ullrich

Proceedings of the 28th International Symposium on Research in Attacks, 2025

2024

Careless Whisper: Exploiting Stealthy End-to-End Leakage in Mobile Instant Messengers.

Gabriel K. Gegenhuber, Maximilian Günther, Markus Maier, Aljosha Judmayer, Florian Holzbauer, Philipp É. Frenzel, Johanna Ullrich

CoRR, 2024

Never Gonna Give You Up: Exploring Deprecated NULL Ciphers in Commercial VoWiFi Deployments.

Gabriel Karl Gegenhuber, Philipp É. Frenzel, Edgar R. Weippl

CoRR, 2024

Diffie-Hellman Picture Show: Key Exchange Stories from Commercial VoWiFi Deployments.

Gabriel Karl Gegenhuber, Florian Holzbauer, Philipp É. Frenzel, Edgar R. Weippl, Adrian Dabrowski

Proceedings of the 33rd USENIX Security Symposium, 2024

Why E.T. Can't Phone Home: A Global View on IP-based Geoblocking at VoWiFi.

Gabriel K. Gegenhuber, Philipp É. Frenzel, Edgar R. Weippl

Proceedings of the 22nd Annual International Conference on Mobile Systems, 2024