Security

CIA Triad

ByStefan Karg 29.07.202225.08.2025

This week: Learn about the three fundamentals of security:

🔒confidentiality, 🏡 integrity and 🟢 availability

AI

BSI AI Guideline
ByStefan Karg 12.04.202325.08.2025

What a good start into the weekend 😎 📄 The German BSI has published a guideline for developers regarding potential vulnerabilies in AI systems. 📣 From my point of view, a security risk assessment on systems using AI technologies has to consider the attacks on the AI parts of the system as well. A security…

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OT

Investigation of cyber-attack on Polish rail network
ByStefan Karg 28.08.202325.08.2025

The Polish Press Agency (PAP) reports a cyber attack on the Polish rail network in the north-west of the country in Szczecin. A BBC article reports: “Hackers broke into railway frequencies to disrupt traffic in the north-west of the country overnight, the Polish Press Agency (PAP) reported on Saturday.The signals were interspersed with recording of…

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OT | Security | Standardization

Railway Security standards
ByStefan Karg 08.08.202425.08.2025

In this post, I delve into the most relevant standards that secure our railway systems. Using Europe and Germany as a case study for the local and national level of standards, the following infographics provides a comprehensive overview of the most relevant standards helping to increase security on the tracks. 📄 Download infographics as pdf:…

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Political | Security | Standardization

BSI & TÜV: Worrying Survey on Cybersecurity Among German Companies
ByStefan Karg 12.06.202512.06.2025

The German BSI (Federal Office for Information Security) and TÜV-Verband conducted a survey among German companies to assess the status of cybersecurity in the private sector. Some worrying results from my point of view are: 🌐 Link to the study: BSI – Presse – TÜV-Studie zur Cybersicherheit der deutschen Wirtschaft: Bedrohungslage steigt, Unternehmen wiegen sich…

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AI

ISO 42001 Practitioner certification
ByStefan Karg 26.09.202516.12.2025

This month I’ve earned the ISO/IEC 42001:2023. Artificial intelligence management system practitioner certification of rigcert.education. As AI systems become widely integrated into the business world, securely managing them is increasingly critical. How can organizations ensure the reliability of AI outputs, protect company data from loss, and maintain system availability? These topics—and many others—are addressed by…

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Security

Christmas season
ByStefan Karg 20.12.202225.08.2025

Christmas season is here again! Like you, your “favorite” cyber criminals are also waiting to get their presents. Here are my 3 free security tips for you to spoil their fun this Christmas season: Have a wonderful time with your beloved ones and stay secure!

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