Security

Two-factor authentication

ByStefan Karg 10.02.202225.08.2025

Start to annoy hackers today by using two-factor authentication (2FA)!

Setting up 2-Step Verification (2SV) – NCSC.GOV.UK

Security

What is a vulnerability?
ByStefan Karg 05.10.202225.08.2025

Security basics: What is a vulnerability?

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Rail technology | Security

How railway cyber security works in a nutshell
ByStefan Karg 10.08.202325.08.2025

Step 1: Plan Security Management: This is the first step in the process, indicating the importance of planning and managing security measures effectively. Step 2: Security Risk Analysis (IEC 62443-3-2): The second step involves conducting a security risk analysis in accordance with the IEC 62443-3-2 standard. This step is crucial for identifying potential security risks…

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OT

OT security testing
ByStefan Karg 21.07.202225.08.2025

This was my start into the new week this morning! 🌞🚴 This week I’m at one of our customers laboratories. Certain tests with OT components require physical presence and can’t be done remotely – which is a difference to a lot of IT environments.

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Security

Software supply chain attacks
ByStefan Karg 03.02.202225.08.2025

An attack on the software build pipeline can to some degree be compared to an attack on your supply chain. Your code can be 100% reviewed, but still the end product will contain malicious code – a very dangerous situation. Defending software build pipelines from malicious attack – NCSC.GOV.UK

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Political | Security | Vulnerabilities

MITRE CVE list might go offline today
ByStefan Karg 16.04.202525.08.2025

😬 MITRE CVE list might go offline today! This would be catastrophic for global vulnerability management. What I’ve described as a scenario theoretically possible in How Trump 2.0 could affect the IT industry in Europe might become reality more quickly than I’ve thought and not on the NIST-NVD level, but on the MITRE level including…

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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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