Attack on GSM-R

ByStefan Karg 10.10.202225.08.2025

Cables for GSM-R were intentionally cut this morning in northern Germany. This is a very serious incident and has to be carefully investigated with regard to the motivation of the attackers.

Link to article of German newspaper “Die Zeit” (08.10.2022)

Rail technology

Series: How does a train brake?
ByStefan Karg 20.03.202425.08.2025

Part 1: Understanding the role of friction In the world of trains, speed is often the star of the show. The rush of the landscape whizzing by is the sensation that captures our imagination. Yet, as any experienced engineer will tell you, the real hero of the railway isn’t the power to go, but the…

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Security

USB Killer redefined
ByStefan Karg 30.03.202325.08.2025

A Military-Type Explosive Sent Via USB Drive (gbhackers.com) ⚡ So far, USB-Killer devices were used by attackers (or pentesters) to disable or destroy devices with USB interfaces by discharging a high power electrical shock into the data lines of the USB port. ❗ If you find a USB stick somewhere: Do not plug it into…

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Political

From a theoretical scenario to dangerous reality
ByStefan Karg 05.04.202425.08.2025

Since February 2022, cybersecurity threats to railways in the European Union have changed fundamentally: nation-state actors are no longer a theoretical possibility, but a dangerous reality. Russia is trying to sabotage European railways, warns Prague 💡 We therefore need to increase the resilience of the railway system against attacks by very capable attackers with access…

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Conferences / Events

Thanks for attending
ByStefan Karg 11.11.202225.08.2025

A big “Thank you” to all participants for attending the German edition of our ICS – Informatik Consulting Systems webinar today! I’m very happy, that so many people were interested in the topic “Security lifecycle management for existing ETCS products”. 📣 In case you’ve missed it or you’re not speaking German – don’t worry! There…

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Security

Real world phishing attacks
ByStefan Karg 25.01.202325.08.2025

This post is a great example, that a spear phishing attack also works in the offline world. It does not always have to be an e-mail! Thank you to Marc Torke for sharing this. The letter in the picture is claiming to come from an official German court and was sent to a newly founded…

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Security

Identity is the new perimeter
ByStefan Karg 29.04.202325.08.2025

Identity is the new perimeter. What does this mean in times of AI – both on the offensive and the defensive side? 💡 Rohit Ghai talks about this in an inspiring keynote at RSA Conference 2023. Well worth watching! https://www.youtube.com/watch?v=plMlFAxHJ6s

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