Dr. Alexander Krause

IT Security.
Strategically Designed.
Scientifically Grounded.

Current research meets practical consulting, so your IT security goes beyond paper.

Services

IT security grounded in current research

IT Security Consulting

IT security consulting for organizations of all sizes: NIS2 compliance, GDPR requirements, establishing an ISMS based on ISO 27001. My approach draws on current research and addresses the human factor alongside the technical side.

  • Strategic security consulting
  • NIS2 & GDPR compliance
  • Risk assessment & action planning

Security Concepts

I create IT security concepts: status quo analysis, threat modeling, actionable recommendations. Aligned with BSI IT-Grundschutz and ISO 27001, informed by research on developer workflows, authentication, and secret management.

  • Status quo analysis
  • BSI IT-Grundschutz & ISO 27001
  • Threat modeling

Talks & Keynotes

Talks on IT security topics including usable security, AI in cybersecurity, and secure software development. Each talk draws on peer-reviewed research and is adapted to your audience.

  • Conference talks & keynotes
  • Research-backed content
  • Individually tailored

Trainings & Workshops

IT security trainings and workshops: security awareness for the whole team or technical deep dives for developers. I adapt format and content to your team's existing knowledge.

  • Security awareness training
  • Technical deep dives
  • Custom content
Dr. Alexander Krause

About Me

I am an independent IT security consultant, supporting organizations with consulting, security concepts, talks, and trainings. Alongside my consulting work, I conduct research at CISPA — Helmholtz Center for Information Security and Leibniz University Hannover as part of the TeamUSEC research group, focusing on usable security and privacy. I completed my MSc in Computer Science in 2021 with distinction (1.0) and my doctoral degree in computer science with very good (1.0).

5+
Years Security Research
10+
Publications
A*
Top Conferences
2025
Dr. rer. nat. in Computer Science
CISPA, Leibniz University Hannover
2021
MSc in Computer Science
Leibniz University Hannover
2019
BSc in Computer Engineering
Leibniz University Hannover

Experience

January 2026 – PresentHannover, Germany
Independent IT Security Consultant
  • IT security consulting for organizations
  • Creation of IT security concepts
  • Expert talks and keynotes on IT security
  • Trainings and workshops
June 2021 – PresentHannover, Germany
Researcher in Usable Security and Privacy
  • Leading research projects in Usable Security and Privacy
  • Contributing to the EU project DAISEC2.0
  • Supervising Bachelor and Master theses
  • Teaching courses in Usable Security and Privacy
  • Publishing scientific papers at top conferences (USENIX Security, CCS)
  • Administration of IT infrastructure
January 2020 – May 2021Hannover, Germany
Scientific Software Developer
  • Development of a remote study infrastructure for a research project

Publications

Selected scientific publications

Der regulatorische Rahmen für Code Secret Leakage

Niklas Krause, Alexander Krause
Datenschutz und Datensicherheit - DuD · 2026

Human Factors on Secret Security: Case Studies on Code Secret Leakage, Cryptographic Updates, and Password Update Procedures

Alexander Krause
Doctoral Thesis · 2025

Skipping the Security Side Quests: A Qualitative Study on Security Practices and Challenges in Game Development

Philip Klostermeyer, Sabrina Klivan, Sandra Höltervennhoff, Alexander Krause, Niklas Busch, Sascha Fahl
CCS 2024 (A* conference) · 2024

"We've Disabled MFA for You": An Evaluation of the Security and Usability of Multi-Factor Authentication Recovery Deployments

Sabrina Klivan, Sandra Höltervennhoff, Nicolas Huaman, Alexander Krause, Lucy Simko, Yasemin Acar, Sascha Fahl
CCS 2023 (A* conference) · 2023

Pushed by Accident: A Mixed-Methods Study on Strategies of Handling Secret Information in Source Code Repositories

Alexander Krause, Jan H. Klemmer, Nicolas Huaman, Dominik Wermke, Yasemin Acar, Sascha Fahl
USENIX Security 2023 (A* conference) · 2023

Talks

Invited talks on IT security and research

IT Infrastructure Threat Landscape and Available Support Services

FIS Erfa (Fachinformationstagung Erfahrungsaustausch) — Zentralverband des Deutschen Handwerks (ZDH) · Leibniz Haus, Hannover · 2026-05-18

Talk at the FIS Erfa (knowledge exchange information event) of the German Confederation of Skilled Crafts (ZDH). Topics: current threat landscape for IT infrastructure in skilled trades and concrete support services available for businesses.

AI and Cybersecurity: New Threats and Attacks

KI mAI — Transferstelle Cybersicherheit im Mittelstand · Online · 2026-05-05

What should you keep in mind when it comes to AI and cybersecurity? Opening session of the KI mAI event series with an overview of new attack vectors and risks posed by AI-powered threats.

AI Between Attack and Risk: How Companies Can Protect Themselves Against the New Threat Landscape

FranKI — Mittelstand-Digital Zentrum Franken · Online · 2026-05-12

Talk on AI-powered cyberattacks, risks of using LLMs in enterprises, and strategies for protecting AI systems and IT infrastructure.

AI & Cybersecurity: Attack Vectors Against LLMs and Chatbots

IT-Security Awareness Days (IT-SAD) Sommersemester 2026 — TU Braunschweig · Online (WebEx) · 2026-05-06

Overview of attack vectors against LLMs and chatbots, including prompt injection, jailbreaks, and exfiltration of system prompts. The talk addresses what to consider when deploying language models in production.

AI & Cybersecurity – Opportunities and Risks

Webinar — Handelskammer Hamburg · Online · 2026-04-16

How AI makes cyberattacks faster, cheaper, and more professional – even without deep technical knowledge. Plus: risks of internal AI deployment including data breaches, uncontrolled outputs, and manipulated training data.

Artificial Intelligence in IT Security: Opportunities and Risks for Businesses

KIWI – KI-Netzwerk der Wirtschaftsregion Hannover — Wirtschaftsförderung Region Hannover · Hannover · 2026-04-14

Using LLMs securely – attack vectors, risks, and best practices for businesses. Talk on prompt injection, jailbreaking, and secure LLM deployment in enterprise contexts.

AI in Skilled Trades: Opportunities and Challenges

CYBERsicher – Transferstelle Cybersicherheit — Handwerkskammer Magdeburg · Online · 2026-03-12

Talk on opportunities and risks of using AI in skilled trades, with practical examples and cybersecurity guidance.

Post-Quantum Cryptography

IT-Sicherheit neu gedacht — hannoverimpuls · Hannover · 2025-11-04

Overview of how quantum computers threaten classical cryptographic schemes and the steps companies should plan for when migrating to quantum-resistant algorithms.

FAQ

Answers to common questions about IT security consulting

Who benefits from IT security consulting?
The consulting is for organizations of all sizes. Those that process sensitive data or want to ground their security strategy in research benefit the most. Since data protection and IT security go hand in hand, regulatory requirements like NIS2 and GDPR are always part of the engagement.
What does an initial consultation look like?
The initial consultation is free. We discuss your current security posture and needs together. Based on this, I provide a customized quote — the subsequent consulting, risk analyses, security concepts, and concrete recommendations are paid services.
Do you support NIS2 compliance?
Yes, NIS2 compliance is a focus of my consulting. I help determine whether your organization falls under the NIS2 directive, conduct gap analyses of existing measures, and develop action plans. The consulting covers the technical requirements and organizational obligations under the NIS2 implementation law.
What topics do your talks cover?
Topics range from usable security to AI in cybersecurity to secure software development. I adapt each talk to the audience and draw on current, peer-reviewed studies. Get in touch if you have a specific topic in mind.
How much does IT security consulting cost?
Costs depend on the scope and complexity of the project. After a free initial consultation, I provide a customized quote. Contact me for a non-binding inquiry.
Do you also offer remote consulting?
Yes, consulting is available both on-site and remotely across Germany. Workshops and trainings can be conducted in a hybrid format — depending on your team's needs. Clients in Hannover, Braunschweig, Bremen, and Hamburg can also be served in person.
What sets your consulting apart from other providers?
I do research on real-world security problems at CISPA Helmholtz Center for Information Security and bring those findings directly into consulting. Recommendations are based on peer-reviewed studies, not generic checklists.

Contact

Let's discuss your project

Location
Hannover, Lower Saxony, Germany

Discuss a project?

I look forward to your inquiry. Send me an email and we will find a time to meet. I typically respond within 24 hours.

Send Email

Referenzen

Erfolgreiche Zusammenarbeit mit ausgewählten Kunden und Partnern.