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  1. A Privacy Measure Turned Upside Down? Investigating the Use of HTTP Client Hints on the Web

    Article • July 2024, ACM (Association for Computing Machinery)

    Stephan Wiefling

  2. Is It Really You Who Forgot the Password? When Account Recovery Meets Risk-Based Authentication

    Article • January 2024, Springer Science + Business Media

    Stephan Wiefling

  3. Risk-Based Authentication for OpenStack: A Fully Functional Implementation and Guiding Example

    Article • April 2023, ACM (Association for Computing Machinery)

    Stephan Wiefling

  4. Data Protection Officers’ Perspectives on Privacy Challenges in Digital Ecosystems

    Article • January 2023, Springer Science + Business Media

    Stephan Wiefling

  5. Pump Up Password Security! Evaluating and Enhancing Risk-Based Authentication on a Real-World Large-Scale Online Service

    Article • ACM Transactions on Privacy and Security, June 2022, ACM (Association for Computing Machinery)

    Stephan Wiefling

  6. Verify It’s You: How Users Perceive Risk-Based Authentication

    Article • IEEE Security & Privacy, November 2021, Institute of Electrical & Electronics Engineers (IEEE)

    Stephan Wiefling

  7. Privacy Considerations for Risk-Based Authentication Systems

    Article • September 2021, Institute of Electrical & Electronics Engineers (IEEE)

    Stephan Wiefling

  8. "I just looked for the solution!" - On Integrating Security-Relevant Information in Non-Security API Documentation to Support Secure Coding Practices

    Article • IEEE Transactions on Software Engineering, January 2021, Institute of Electrical & Electronics Engineers (IEEE)

    Stephan Wiefling

  9. What’s in Score for Website Users: A Data-Driven Long-Term Study on Risk-Based Authentication Characteristics

    Article • January 2021, Springer Science + Business Media

    Stephan Wiefling

  10. More Than Just Good Passwords? A Study on Usability and Security Perceptions of Risk-based Authentication

    Article • December 2020, ACM (Association for Computing Machinery)

    Stephan Wiefling

  11. Programmieren trainieren

    Article • March 2020, Carl Hanser Verlag

    Stephan Wiefling

  12. Evaluation of Risk-Based Re-Authentication Methods

    Article • January 2020, Springer Science + Business Media

    Stephan Wiefling

  13. Reverse engineering Google and others' algorithms that protect your accounts from hacking attempts

    Article • January 2019, Springer Science + Business Media

    Stephan Wiefling

  14. Even Turing Should Sometimes Not Be Able to Tell: Mimicking Humanoid Usage Behavior for Exploratory Studies of Online Services

    Article • January 2019, Springer Science + Business Media

    Stephan Wiefling

  15. Programmieren trainieren

    Article • March 2018, Carl Hanser Verlag

    Stephan Wiefling

  16. How Blockchain is used besides Bitcoin

    Article • Datenschutz und Datensicherheit - DuD, August 2017, Springer Science + Business Media

    Stephan Wiefling