January 01, 2020

You have a tracking device in your pocket
Companies are now selling the ability to track your phone number whereever you go. With a precision of up to 50 meters, detailed movement profiles can be compiled by somebody from the other side of the world without you ever knowing about it. But that is just the tip of the iceberg. SS7 is the global telecommunications backbone network. You use it every time you make a call, receive a text message or use the mobile network's internet access. But to be reachable, the network has to know your location. And access to the SS7 network is getting easier and easier, without the security measures keeping up. As a follow-up to 25C3's "Locating Mobile Phones using SS7" this talk will offer a look at what has changed in the last six years. I will show how easy it is for intelligence services and criminals to circumvent the network's defenses to get the data they want, just based on your phone number.
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➤Speaker: Tobias Engel

August 23, 2014

Surveillance companies are marketing systems to governments worldwide that are capable of pulling location data out of global cellular networks, even if you are traveling in another country. These systems are designed so that neither cellphone users nor their carriers detect the tracking. That could allow government officials to potentially sidestep court review or other systems designed to protect the rights of people targeted for surveillance.

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➤Washington Post Infographic

February 23, 2023

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May 28, 2023

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