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Tim Ohlendorf, M.Sc.

Wissenschaftlicher Mitarbeiter

Security researcher and PhD candidate in the area of mobile security and digital identities. Involved in several projects, regarding the security and privacy aspects of electronic identification (eIDAS, mDL, eHealth, Self-sovereign identities). Also interested in Android Hacking and the Human Factor in IT security.


  • 2021:   Team Lead Identity Management at Fraunhofer AISEC
  • 2019 - 2021: Security Researcher at Fraunhofer AISEC
  • 2018 - 2019: Research Assistant at Freie Universität Berlin
  • 2015 - 2018: M.Sc. in Computer Science at Technische Universität Darmstadt
  • 2012 - 2015: B.Sc in Computer Science at Darmstadt University of Applied Science


  • Winter 18/19: Security Protocols and Infrastructure (Tutorial)
  • Summer 19: Machine Learning in the Context of IT Security (Seminar)
  • Winter 19/20: Security Protocols and Infrastructure
  • Summer 20: Machine Learning & IT-Security (Seminar)

Supervised Theses

  • Besendorf, Janik (2021). Automatic Detection of Android Device Security Properties. Bachelor thesis. Freie Universität Berlin.
  • Walter, Lilli (2021). The Threat of Sensor-based Covert Channels in Smart Homes. Master thesis. Freie Universität Berlin.
  • Dean, Lawrence (2020). Secure deployment, storage and use of a virtual health card on smartphones. Master thesis. Technische Universität Darmstadt.
  • Rösner, Julian (2020). Key Management for End-to-End Security Using the Example of the Electronic Health Record. Master thesis. Technische Universität Berlin