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Simjacker - Frequently Asked Questions and Demos

11th Oct 2019

We have received a lot of questions since we revealed the existence and active exploitation of the Simjacker vulnerability. Here we put the most common questions, as well as showing example demos of the Location retrieval and Browser-Opening attacks, made possible by Simjacker

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Keeping a Low Profile – Detecting the Presence of IMSI Catchers around the World

20th Aug 2019

Finding IMSI Catchers can be a difficult task, and in some cases they may not be identifiable at all. However we have identified a potential new way to detect IMSI Catchers around the world.

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Measuring the Diameter - Protecting 4G Networks

6th Mar 2018

Many conversations about Mobile phone security has concerned the older SS7 network, but its successor Diameter being used to control the 4G network hasn’t received as much interest. We look at what the real threats are over this system.

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Ireland’s Call , Careful Now

20th Oct 2017

Here in Ireland there has been an upsurge of recent reports on people receiving missed calls from a series of unknown numbers abroad, and then being billed large amounts of money when dialling back the number. We profile why and how this is happening, and what can be done about it.

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SIGIL - Getting Ahead of the Game

12th Sep 2017

SIGIL, a new way for Operators to get the intelligence they need to best defend against SS7 attacks

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The Flash – Around the world in 0.8 seconds

26th Jun 2017

What do you do if you come across a mobile phone going from Philippines to Brazil then to China, then to Armenia, in less than 60 seconds?

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Tunnel Vision : Malicious data interception via SS7

17th May 2017

Recent criminal activity using SS7 methods and a series of high-profile reports on SS7 security have focused a lot of attention on the dangers of malicious access to the SS7 network. We explain a previously unrecorded attempted type of attack - data interception via SS7 access - to show that defenses can fix the problem

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Designated Attacker - Evolving SS7 Attacks

13th Feb 2017

Attacks over the SS7 network have gotten so well known now that they have begun featuring in Hollywood. However while more people know about SS7 attacks, the actual attackers are improving and deepening their knowledge.

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SS7 Security : Putting the pieces together

18th Apr 2016

Recent news releases bring to life what are possible via SS7 attacks. We show how state agencies have been gathering this information in the past, and give an example of the scale of what is possible, via a major SS7-caused outage in a European operator.

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