Stephan Wiefling
emailstephan.wiefling (a) th-koeln.de
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About

I’m a PhD student in IT Security (Data- and Application Security Group, TH Köln) supervised by Luigi Lo Iacono and Markus Dürmuth. My current research spans areas of Authentication and Usability. Among other things, I am researching how to improve the security of passwords without reducing usability.

I also co-wrote the book “Programmieren trainieren” (Exercise programming) which was released in the Hanser Verlag.

Research interests

  • Risk-based Authentication
  • Usable Security
  • Mobile Authentication
  • Usable Passwords
  • Developer-Centered Security
  • Human-Computer-Interaction (HCI)

Awards

Best Graduate of the Year 2018/2019, Master Media Technology
Granted by: TH Köln - University of Applied Sciences
RISE Germany Scholarship 2019
Granted by: German Academic Exchange Service (DAAD)

Selected Publications


Is This Really You? An Empirical Study on Risk-Based Authentication Applied in the Wild ()
and 34th IFIP TC-11 International Conference on Information Security and Privacy Protection (IFIP SEC 2019).
Download Website
@inproceedings{article_ifipsec2019_wiefling,
  title = {Is {This} {Really} {You}? {An} {Empirical} {Study} on {Risk}-{Based} {Authentication} {Applied} in the {Wild}},
  booktitle = {34th {IFIP} {TC}-11 {International} {Conference} on {Information} {Security} and {Privacy} {Protection} ({IFIP} {SEC} 2019)},
  author = {Wiefling, Stephan and Lo Iacono, Luigi and D\"{u}rmuth, Markus},
  address = {Lisbon, Portugal},
  month = jun,
  year = {2019},
  url = {https://ifipsec.org/2019}
}

Warn if Secure or How to Deal with Security by Default in Software Development? ()
and 12th International Symposium on Human Aspects of Information Security and Assurance (HAISA).
Download
@inproceedings{article_haisa2018_gorski,
  author = { Gorski, {Peter Leo} and {Lo Iacono}, Luigi and Wiefling, Stephan and M{\"o}ller, Sebastian},
  title = {Warn if Secure or How to Deal with Security by Default in Software Development?},
  booktitle = {12th International Symposium on Human Aspects of Information Security and Assurance (HAISA)},
  year = {2018},
  url = {http://www.haisa.org/}
}

Programmieren trainieren - Mit über 120 Workouts in Java und Python [Exercise programming - With over 120 workouts in Java and Python] ()
and Carl Hanser Verlag GmbH & Co. KG.
Download [Preview]
@book{book_hanser2018_LoIacono,
  title = {Programmieren trainieren - Mit über 120 Workouts in Java und Python},
  author = {Lo Iacono, Luigi and Wiefling, Stephan and Schneider, Michael},
  year = {2018},
  publisher = {Carl Hanser Verlag GmbH & Co. KG},
  url = {http://www.hanser-fachbuch.de/buch/Programmieren+trainieren/9783446454866}
}

Anwendung der Blockchain außerhalb von Geldwährungen [Applying Blockchain outside of Crypto Currencies] ()
and DuD - Datenschutz und Datensicherheit.
Download
@article{journals_dud41.2_wiefling,
  author = {Wiefling, Stephan and Lo Iacono, Luigi and Sandbrink, Frederik},
  year = {2017},
  pages = {482-486},
  volume = {41},
  number = {8},
  doi = {10.1007/s11623-017-0816-x},
  journal = {DuD - Datenschutz und Datensicherheit},
  url = {https://doi.org/10.1007/s11623-017-0816-x},
}