Research Areas


User Authentication
User Authentication
Usable Privacy
Privacy Controls

  • User Authentication
    • Passwords (Strength, Recovery, Management, Quantum ...)
    • Mobile Authentication (PINs, Patterns, Biometrics)
    • Notifications (Login & Risk-based, Reuse, 2FA)
    • Passwordless (FIDO2 & biometric WebAuthn & Passkeys)
    • Access Control (Smart Home & IoT)
    • Alternative Schemes (Implicit Memory, Gamification)
  • Usable Privacy
    • Online Behavioral Advertising (Controls & Dashboards)
    • Disruptive Technologies (Smart Speakers & Mobile Apps)
    • Secure Communication (Messenger & Email Encryption)

Community Service, Committees, and Reviewing Activities

Below you can find a list of recenty reviewing activities and other work in scientific committees.
Last update: November 2022
  • Program Committee: 19th Symposium on Usable Privacy and Security (SOUPS '23)
  • Reviewer: ACM Conference on Human Factors in Computing Systems (CHI '23)
  • Reviewer: ACM Conference on Human Factors in Computing Systems (CHI '22)
  • Reviewer: ACM Transactions on Privacy and Security (TOPS '21)
  • Reviewer: IEEE Transactions on Information Forensics and Security (TIFS '21)
  • Program Committee and Poster Chair: 17th Symposium on Usable Privacy and Security (SOUPS '21)
  • External Reviewer: 42nd IEEE Symposium on Security and Privacy (SP '21)
  • Reviewer: 16th International Conference on Wirtschaftsinformatik (WI '21)
  • Reviewer: IEEE Transactions on Emerging Topics in Computing (TETC '20)
  • Program Chair: 6th Who Are You?! Adventures in Authentication Workshop (WAY '20)
  • Program Committee and Poster Chair: 16th Symposium on Usable Privacy and Security (SOUPS '20)
  • Publicity Chair: 5th European Workshop on Usable Security (EuroUSEC '20)
  • Reviewer: ACM Transactions on Privacy and Security (TOPS '20)
  • External Reviewer: 29th USENIX Security Symposium (SSYM '20)
  • Poster Jury: 15th Symposium on Usable Privacy and Security (SOUPS '19)
  • Program Chair: 5th Who Are You?! Adventures in Authentication Workshop (WAY '19)
  • Program Committee and Publicity Chair: 4th European Workshop on Usable Security (EuroUSEC '19)
  • Program Committee: 4th Who Are You?! Adventures in Authentication Workshop (WAY '18)
  • Reviewer: 39th International Conference on Information Systems (ICIS '18)
  • Program Committee: 2018 Networked Privacy Workshop at ACM CHI (NPW '18)
  • External Reviewer: 3rd Who Are You?! Adventures in Authentication Workshop (WAY '17)
  • External Reviewer: 26th USENIX Security Symposium (SSYM '17)
  • Reviewer: ACM Transactions on Privacy and Security (TOPS '17)
  • Reviewer: 11th International Conference on Passwords (PASSWORDS '16)

Education


  • Doctorate (Dr.-Ing.) With Highest Honors
  • Master of Science (M.Sc., Engineer) Very Good
    • IT Security - Network & Systems
    • «Graphical Fallback Authentication»
    • Ruhr University Bochum
  • Bachelor of Engineering (B.Eng., Engineer) Good
    • Computer Science - Communication in Distributed Systems
    • «Security Audit of a Web Interface for Building Automation»
    • University of Applied Sciences Würzburg-Schweinfurt