Tag Archive

Surveillance Article: Listening Posts for Wireless Communication

Published on June 18, 2015 By René Pfeiffer

Modern ways of communication and methods to obtain the transported data have raised eyebrows and interest in the past years. Information security specialists are used to digitally dig into the networked world. Once you take a look at buildings, geographic topology, and photographs of structures your world view expands. Coupled with the knowledge of ham […]

DeepSec 2013 Workshop: Attacks On GSM Networks

Published on October 4, 2013 By René Pfeiffer

Mobile phone networks have penetrated even the most remote areas of the Earth. You can send a tweet from Mount Everest if you like, the cell service is already there. In addition mobile phone networks feature 6 billion subscribers all over the world. Communication by mobile devices has entered the routine of daily life. It’s […]

DeepSec 2012 Workshop: Attacks on GSM Networks

Published on September 20, 2012 By René Pfeiffer

We are proud to follow the tradition of breaking hardware, software, code, ciphers or protocols. When it comes to mobile phone networks, you can break a lot. The workshop on Attacks on GSM Networks will show you the current state of affairs and some new tricks and developments. The attacks that will be discussed during […]

Talk: Extending Scapy by a GSM Air Interface

Published on October 16, 2011 By René Pfeiffer

Scapy is the „Swiss Army tool“ among security software. Scapy is a powerful interactive packet manipulation program. It is used for scanning, probing, testing software implementations, tracing network packets, network discovery, injecting frames, and other tasks. So it’s a security power tool useful for a lot of tasks in security research. Wouldn’t it be nice […]

Workshop: Attacks on GSM Networks

Published on September 10, 2011 By René Pfeiffer

The topic of GSM networks has been discussed at past DeepSec conferences right from the very first event in 2007. Recent years saw a significant increase of research in GSM attacks: The weaknesses of A5/1 encryption have been demonstrated and exploited, several GPRS networks in Europe have been shown to be insecure, and an ever-growing […]

Mobile Network Security revisited at the Linuxwochen

Published on May 20, 2011 By René Pfeiffer

Tomorrow we will present a review talk about the state of mobile network security. The talk will be held at the Linuxwochen in Eisenstadt. We will address results discussed in the past DeepSec conferences (including work of Karsten Nohl, Harald Welte, David A. Burgess, Sylvain Munaut, Dieter Spaar, Ralph-Philipp Weinmann and others). If you understand […]

DeepSec 2011 Focus: Mobile Computing and Communications

Published on May 2, 2011 By René Pfeiffer

Our Call for Papers announcement mentioned seven topics that we are focussing on. We’d like to explain what these topics are all about in a couple of blog postings since it is not easy to squeeze everything into a few lines. We begin with mobile computing and communication. Mobile computing incorporates mobile computing devices such […]

DeepSec: Mobile Radio Networks as Targets for Virtual Warfare

Published on November 20, 2010 By René Pfeiffer

Vienna – The times when a mobile phone was used solely to make calls are long gone, now it’s all about making pictures and surfing the Internet. The groundbreaking success of the iPhone is just one example for the fact that mobile phones have long since outgrown their original use. Youths and adults use them […]

A Brief History of GSM A5/2 and 2G/3G Security

Published on November 15, 2010 By René Pfeiffer

MiKa and me shared some knowledge about the design flaws and the state of security in 2G/3G networks. The idea was to present an overview. Those networks have been shrouded in NDAs for too long. It is good to see that this is changing. Given the fact that millions of people use this technology on […]

Sneak Preview – your cellphone can be tapped

Published on August 2, 2010 By René Pfeiffer

You probably have a cellphone. Your company might even provide an additional one. Your boss most certainly uses a cellphone. What do you use it for? Do you share details about your private life via phone conversations? Did you ever talk to a business partner about confidential offers? Do you rely on cellphone when it […]